Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
8,055 results · page 22 of 162
May 4, 2026WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries thaCVE-2026-41927 · Other software · Shenzhen Yipu Commercial and Trading Co., Ltd · reported by VulnCheckHigh 8.3
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitrary code execution through return-oriented programming or return-to-libc techniques.
- Product
- WDR201A WiFi Extender
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmstreet97.github.iomade-in-china.com
May 3, 2026A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2.CVE-2026-7372 · Other software · GeoVision Inc. · reported by 0df08a0e-a200-4957-9bb0-084f562506f9Critical 9
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability. #### Stack-overflow via unconstrained sscanf The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn't limit the size of the extracted content to match the destination buffers' sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables `username` and `password`) then a stack overflow will occur. The data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could lead to full code execution as SYSTEM on the machine running the service.
- Product
- GV-VMS V20.0.2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtalosintelligence.comgeovision.com.tw
May 3, 2026A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2.CVE-2026-42370 · Other software · GeoVision Inc. · reported by 0df08a0e-a200-4957-9bb0-084f562506f9Critical 9
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.
- Product
- GV-VMS V20.0.2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtalosintelligence.comgeovision.com.tw
May 1, 2026flipperzero-firmware commit ad2a80 was discovered to contain a stack overflow in the "Main" function.CVE-2026-30363 · Other software · reported by MITREHigh 8.4
flipperzero-firmware commit ad2a80 was discovered to contain a stack overflow in the "Main" function.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
May 1, 2026AGL agl-service-can-low-level contains a stack buffer overflow in the uds-c library.CVE-2026-42485 · Other software · reported by MITREHigh 7.5
AGL agl-service-can-low-level contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function in uds.c allocates a 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) but copies up to 7 bytes (MAX_UDS_REQUEST_PAYLOAD_LENGTH=7) via memcpy at an offset of 1+pid_length (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payload_length field (uint8_t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.automotivelinux.orggist.github.com
May 1, 2026miaofng/uds-c commit e506334e270d77b20c0bc259ac6c7d8c9b702b7a (2016-10-05) contains a stack buffer overflow in send_diagnostic_request.CVE-2026-37536 · Other software · reported by MITREHigh 8.8
miaofng/uds-c commit e506334e270d77b20c0bc259ac6c7d8c9b702b7a (2016-10-05) contains a stack buffer overflow in send_diagnostic_request. A 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) receives memcpy at offset 1+pid_length with payload_length bytes. MAX_UDS_REQUEST_PAYLOAD_LENGTH=7, so 1+2+7=10 exceeds buffer by 4 bytes. No bounds check on payload_length before memcpy.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
May 1, 2026AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library.CVE-2026-37530 · Computers, phones & browsers · Linuxfoundation · reported by MITREHigh 7.5
AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function in uds.c allocates a 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) but copies up to 7 bytes (MAX_UDS_REQUEST_PAYLOAD_LENGTH=7) via memcpy at an offset of 1+pid_length (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payload_length field (uint8_t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE.
- Product
- Automotive Grade Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.automotivelinux.orggist.github.com
May 1, 2026A stack-based out-of-bounds read vulnerability in VrmlData_Scene::ReadLine in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cCVE-2026-42480 · Other software · Opencascade · reported by MITREMedium 5.5
A stack-based out-of-bounds read vulnerability in VrmlData_Scene::ReadLine in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because the quoted-string escape handler uses ptr[++anOffset] without proper bounds checking, which can read past the end of a fixed-size stack buffer.
- Product
- Open Cascade Technology
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 1, 2026In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix stack out-of-bounds read in init_card The loop creates a whitespace-stripCVE-2026-31778 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.1
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix stack out-of-bounds read in init_card The loop creates a whitespace-stripped copy of the card shortname where `len < sizeof(card->id)` is used for the bounds check. Since sizeof(card->id) is 16 and the local id buffer is also 16 bytes, writing 16 non-space characters fills the entire buffer, overwriting the terminating nullbyte. When this non-null-terminated string is later passed to snd_card_set_id() -> copy_valid_id_string(), the function scans forward with `while (*nid && ...)` and reads past the end of the stack buffer, reading the contents of the stack. A USB device with a product name containing many non-ASCII, non-space characters (e.g. multibyte UTF-8) will reliably trigger this as follows: BUG: KASAN: stack-out-of-bounds in copy_valid_id_string sound/core/init.c:696 [inline] BUG: KASAN: stack-out-of-bounds in snd_card_set_id_no_lock+0x698/0x74c sound/core/init.c:718 The off-by-one has been present since commit bafeee5b1f8d ("ALSA: snd_usb_caiaq: give better shortname") from June 2009 (v2.6.31-rc1), which first introduced this whitespace-stripping loop. The original
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
May 1, 2026In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync hci_le_big_createCVE-2026-31772 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync hci_le_big_create_sync() uses DEFINE_FLEX to allocate a struct hci_cp_le_big_create_sync on the stack with room for 0x11 (17) BIS entries. However, conn->num_bis can hold up to HCI_MAX_ISO_BIS (31) entries — validated against ISO_MAX_NUM_BIS (0x1f) in the caller hci_conn_big_create_sync(). When conn->num_bis is between 18 and 31, the memcpy that copies conn->bis into cp->bis writes up to 14 bytes past the stack buffer, corrupting adjacent stack memory. This is trivially reproducible: binding an ISO socket with bc_num_bis = ISO_MAX_NUM_BIS (31) and calling listen() will eventually trigger hci_le_big_create_sync() from the HCI command sync worker, causing a KASAN-detectable stack-out-of-bounds write: BUG: KASAN: stack-out-of-bounds in hci_le_big_create_sync+0x256/0x3b0 Write of size 31 at addr ffffc90000487b48 by task kworker/u9:0/71 Fix this by changing the DEFINE_FLEX count from the incorrect 0x11 to HCI_MAX_ISO_BIS, which matches the maximum number of BIS entries that conn->bis can actually carry.
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
May 1, 2026A stack-based buffer overflow in mangle_to_hex_lower() and mangle_to_hex_upper() in src/rp_cpu.c in hashcat v7.1.2 allows an attacker to cause a denial of serviCVE-2026-42482 · Other software · Hashcat · reported by MITRECritical 9.8
A stack-based buffer overflow in mangle_to_hex_lower() and mangle_to_hex_upper() in src/rp_cpu.c in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted rule file, or via the -j or -k rule options used with password candidates of 128 or more characters. The vulnerability is caused by a bounds check that fails to account for the 2x expansion that occurs when password bytes are converted to hexadecimal.
- Product
- Hashcat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 1, 2026An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0.CVE-2026-43003 · Other software · OpenStack · reported by MITREHigh 8
An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0. Ironic Python Agent (IPA) sometimes executes grub-install from within a chroot of the deployed partition image, leading to code execution in the case of a malicious image.
- Product
- ironic-python-agent
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netgithub.com
May 1, 2026An issue was discovered in OpenStack Keystone before 29.0.2.CVE-2026-43001 · Other software · OpenStack · reported by MITREHigh 7.9
An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.
- Product
- Keystone
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netreview.opendev.org
May 1, 2026JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of @APRSIS GRID followed by a long Maidenhead CVE-2026-42996 · Other software · JS8Call · reported by MITRECritical 10
JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of @APRSIS GRID followed by a long Maidenhead locator. This occurs in grid2deg in APRSISClient.cpp.
- Product
- JS8Call
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordamateur-radio-resources.sourceforge.iogithub.com
Apr 30, 2026A security vulnerability has been detected in LinkStackOrg LinkStack up to 4.8.6.CVE-2026-7502 · Other software · LinkStackOrg · reported by VulDBLow 2.1
A security vulnerability has been detected in LinkStackOrg LinkStack up to 4.8.6. The affected element is the function saveLink of the file app/Http/Controllers/UserController.php of the component Management Endpoint. The manipulation leads to authorization bypass. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The pull request to fix this issue awaits acceptance.
- Product
- LinkStack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 30, 2026A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6.CVE-2026-7501 · Other software · LinkStackOrg · reported by VulDBLow 2
A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6. Impacted is the function editPage of the file app/Http/Controllers/UserController.php. Executing a manipulation of the argument pageDescription can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a pull request but has not reacted yet.
- Product
- LinkStack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 29, 2026Allok Video to DVD Burner 2.6.1217 contains a stack-based buffer overflow vulnerability in the License Name field that allows local attackers to execute arbitraCVE-2018-25303 · Other software · Alloksoft · reported by VulnCheckHigh 8.6
Allok Video to DVD Burner 2.6.1217 contains a stack-based buffer overflow vulnerability in the License Name field that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overwrite. Attackers can craft a malicious input string with 780 bytes of junk data followed by SEH chain pointers and shellcode, then paste it into the License Name field during registration to achieve code execution.
- Product
- Allok Video to DVD Burner
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordalloksoft.comexploit-db.com
Apr 29, 2026A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.CVE-2026-0206 · Network & remote access · SonicWall · reported by PSIRT@sonicwall.comMedium 4.9
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.
- Product
- SonicOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpsirt.global.sonicwall.com
Apr 29, 2026Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or meCVE-2026-7111 · Other software · HMBRAND · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 8.4
Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruption. The Parse, print, getline, and getline_all methods invoke registered callbacks (for example after_parse, before_print, or on_error) and cache the Perl argument stack pointer across the call. If a callback extends the argument stack enough to trigger a reallocation, the return value is written through the stale pointer into the freed buffer, and the caller reads the original $self argument as the return value instead. Calling code that expects parsed data from getline_all receives the Text::CSV_XS object in its place, leading to logic errors or crashes. Text::CSV_XS objects used without any registered callbacks are not affected.
- Product
- Text::CSV_XS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.commetacpan.org
Apr 29, 2026TOTOLINK A3002RU V3 <= V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the hostname parameter in the formMapDelDevice functionCVE-2026-36837 · Other software · reported by MITREHigh 7.5
TOTOLINK A3002RU V3 <= V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the hostname parameter in the formMapDelDevice function.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 28, 2026OpenStack Ironic before 35.0.1 allows ipmitool execution in a non-default configuration that has a console interface.CVE-2026-42510 · Other software · OpenStack · reported by MITREMedium 6.6
OpenStack Ironic before 35.0.1 allows ipmitool execution in a non-default configuration that has a console interface.
- Product
- Ironic
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netsecurity.openstack.org
Apr 26, 2026A vulnerability was found in choieastsea simple-openstack-mcp up to 767b2f4a8154cca344344b9725537a58399e6036.CVE-2026-7066 · Other software · choieastsea · reported by VulDBMedium 5.5
A vulnerability was found in choieastsea simple-openstack-mcp up to 767b2f4a8154cca344344b9725537a58399e6036. The affected element is the function exec_openstack of the file server.py. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
- Product
- simple-openstack-mcp
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 24, 2026BACnet Stack is a BACnet open source protocol stack C library for embedded systems.CVE-2026-41503 · Other software · bacnet-stack · reported by GitHubHigh 8.7
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerability in bacnet-stack's ReadPropertyMultiple service property decoder allows unauthenticated remote attackers to read past allocated buffer boundaries by sending an RPM request with a truncated property list. The vulnerability stems from rpm_decode_object_property() calling the deprecated decode_tag_number_and_value() function at src/bacnet/rpm.c:344, which accepts no buffer length parameter and reads blindly from whatever pointer it receives. A crafted BACnet/IP packet with a 1-byte property payload containing an extended tag marker (0xF9) causes the decoder to read 1 byte past the end of the buffer, leading to crashes on embedded BACnet devices. The vulnerability exists in src/bacnet/rpm.c and affects any deployment that enables the ReadPropertyMultiple confirmed service handler (enabled by default in the reference server). This vulnerability is fixed in 1.4.3.
- Product
- bacnet-stack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 24, 2026BACnet Stack is a BACnet open source protocol stack C library for embedded systems.CVE-2026-41502 · Other software · bacnet-stack · reported by GitHubHigh 8.7
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an off-by-one out-of-bounds read vulnerability in bacnet-stack's ReadPropertyMultiple service decoder allows unauthenticated remote attackers to read one byte past an allocated buffer boundary by sending a crafted RPM request with a truncated object identifier. The vulnerability is in rpm_decode_object_id(), which checks apdu_len < 5 but then accesses all 6 byte positions (indices 0-5) — consuming 1 byte for the context tag, 4 bytes for the object ID, then reading apdu[5] for the opening tag check. A 5-byte input passes the length check but causes a 1-byte OOB read, leading to crashes on embedded BACnet devices. The vulnerability exists in src/bacnet/rpm.c and affects any deployment that enables the ReadPropertyMultiple confirmed service handler (enabled by default in the reference server). This vulnerability is fixed in 1.4.3.
- Product
- bacnet-stack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 24, 2026BACnet Stack is a BACnet open source protocol stack C library for embedded systems.CVE-2026-41475 · Other software · bacnet-stack · reported by GitHubHigh 8.7
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerability in bacnet-stack's WritePropertyMultiple service decoder allows unauthenticated remote attackers to read past allocated buffer boundaries by sending a truncated WPM request. The vulnerability stems from wpm_decode_object_property() calling the deprecated decode_tag_number_and_value() function, which performs no bounds checking on the input buffer. A crafted BACnet/IP packet with a truncated property payload causes the decoder to read 1-7 bytes past the end of the buffer, leading to crashes or information disclosure on embedded BACnet devices. This vulnerability is fixed in 1.4.3.
- Product
- bacnet-stack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 24, 2026Delta Electronics AS320T has incorrect calculation of the buffer size on the stack in the GET/PUT request handler of the web service.CVE-2026-1949 · Other software · DeltaWW · reported by 759f5e80-c8e1-4224-bead-956d7b33c98bCritical 9.8
Delta Electronics AS320T has incorrect calculation of the buffer size on the stack in the GET/PUT request handler of the web service.
- Product
- AS320T
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfilecenter.deltaww.com
Apr 23, 2026An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients fromCVE-2026-35225 · Other software · CODESYS · reported by info@cert.vde.comHigh 8.7
An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections.
- Product
- CODESYS EtherNetIP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcodesys.csaf-tp.certvde.comcertvde.com
Apr 22, 2026Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary CVE-2018-25259 · Other software · Lizardsystems · reported by VulnCheckHigh 8.6
Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard.
- Product
- Terminal Services Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlizardsystems.comexploit-db.com
Apr 22, 2026In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req Syzbot reported a KCVE-2026-31513 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 8.1
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req Syzbot reported a KASAN stack-out-of-bounds read in l2cap_build_cmd() that is triggered by a malformed Enhanced Credit Based Connection Request. The vulnerability stems from l2cap_ecred_conn_req(). The function allocates a local stack buffer (`pdu`) designed to hold a maximum of 5 Source Channel IDs (SCIDs), totaling 18 bytes. When an attacker sends a request with more than 5 SCIDs, the function calculates `rsp_len` based on this unvalidated `cmd_len` before checking if the number of SCIDs exceeds L2CAP_ECRED_MAX_CID. If the SCID count is too high, the function correctly jumps to the `response` label to reject the packet, but `rsp_len` retains the attacker's oversized value. Consequently, l2cap_send_cmd() is instructed to read past the end of the 18-byte `pdu` buffer, triggering a KASAN panic. Fix this by moving the assignment of `rsp_len` to after the `num_scid` boundary check. If the packet is rejected, `rsp_len` will safely remain 0, and the error response will only read the 8-byte base header from the stack.
- Product
- Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.kernel.orggit.kernel.org
Apr 21, 2026BACnet Stack is a BACnet open source protocol stack C library for embedded systems.CVE-2026-40279 · Other software · bacnet-stack · reported by GitHubLow 3.7
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decode_signed32() in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set (value ≥ 0x80), the left-shift operation overflows a signed int32_t, which is undefined behavior per the C standard. This is flagged thousands of times per minute by UndefinedBehaviorSanitizer on any BACnet input containing signed-integer property values with high-bit-set bytes. This vulnerability is fixed in 1.4.3.
- Product
- bacnet-stack
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 21, 2026Storable versions before 3.05 for Perl has a stack overflow.CVE-2017-20230 · Other software · NWCLARK · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eCritical 10
Storable versions before 3.05 for Perl has a stack overflow. The retrieve_hook function stored the length of the class name into a signed integer but in read operations treated the length as unsigned. This allowed an attacker to craft data that could trigger the overflow.
- Product
- Storable
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2026A stack-use-after-return issue exists in the Arduino_Core_STM32 library prior to version 1.7.0.CVE-2026-26399 · Other software · reported by MITREMedium 5.3
A stack-use-after-return issue exists in the Arduino_Core_STM32 library prior to version 1.7.0. The pwm_start() function allocates a TIM_HandleTypeDef structure on the stack and passes its address to HAL initialization routines, where it is stored in a global timer handle registry. After the function returns, interrupt service routines may dereference this dangling pointer, resulting in memory corruption.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2026A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM.CVE-2026-6643 · Network & remote access · ASUSTOR Inc. · reported by security@asustor.comHigh 8.6
A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM. The issue stems from the use of unbounded sscanf() and passing user-controlled data directly to printf(). Due to the lack of PIE and Stack Canary protections, an authenticated remote attacker can exploit these to execute arbitrary code as the web server user. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
- Product
- ADM
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 18, 2026In case of SQL errors, exception/stack trace of errors was exposed in API even if "api/expose_stack_traces" was set to false.CVE-2026-30912 · Websites & servers · Apache Software Foundation · reported by security@apache.orgHigh 7.5
In case of SQL errors, exception/stack trace of errors was exposed in API even if "api/expose_stack_traces" was set to false. That could lead to exposing additional information to potential attacker. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.
- Product
- Apache Airflow
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comlists.apache.org
Apr 15, 2026MailGates/MailAudit developed by Openfind has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's exCVE-2026-6350 · Other software · Openfind · reported by twcert@cert.org.twCritical 9.3
MailGates/MailAudit developed by Openfind has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.
- Product
- MailGates
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtwcert.org.twtwcert.org.tw
Apr 15, 2026CentSDR commit e40795 was discovered to contain a stack overflow in the "Thread1" function.CVE-2026-30364 · Other software · reported by MITREHigh 7.5
CentSDR commit e40795 was discovered to contain a stack overflow in the "Thread1" function.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
Apr 15, 2026WebStack: Arbitrary file uploadsCVE-2026-1555 · WordPress plugins & themes · reported by WordfenceCritical 9.8
The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
- Product
- WebStack
- Affected
- up to 1.2024
- What to do
- Affects up to 1.2024. Update WebStack to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Apr 14, 2026In OpenStack Keystone before 28.0.1, the LDAP identity backend does not convert the user enabled attribute to a boolean when the user_enabled_invert configuratiCVE-2026-40683 · Other software · OpenStack · reported by MITREHigh 7.7
In OpenStack Keystone before 28.0.1, the LDAP identity backend does not convert the user enabled attribute to a boolean when the user_enabled_invert configuration option is False (the default). The _ldap_res_to_model method in the UserApi class only performed string-to-boolean conversion when user_enabled_invert was True. When False, the raw string value from LDAP (e.g., "FALSE") was used directly. Since non-empty strings are truthy in Python, users marked as disabled in LDAP were treated as enabled by Keystone, allowing them to authenticate and perform actions. All deployments using the LDAP identity backend without user_enabled_invert=True or user_enabled_emulation are affected.
- Product
- Keystone
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netbugs.launchpad.net
Apr 14, 2026Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.CVE-2026-32203 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
- Product
- .NET 10.0
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmsrc.microsoft.comaccess.redhat.com
Apr 14, 2026Stack-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-32195 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Stack-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 version 26H1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 13, 2026A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE.CVE-2025-3756 · Other software · ABB · reported by cybersecurity@ch.abb.comHigh 7.1
A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE. An attacker with access to IEC 61850 networks could exploit the vulnera bility by using a specially crafted 61850 packet, forcing the communication interfaces of the PM 877, CI850 and CI868 modules into fault mode or causing unavailability of the S+ Operations 61850 connectivity, resulting in a denial-of-service situation. The System 800xA IEC61850 Connect is not affected. Note: This vulnerability does not impact on the overall availability and functionality of the S+ Operations node, only the 61850 communication function. This issue affects AC800M (System 800xA): from 6.0.0x through 6.0.0303.0, from 6.1.0x through 6.1.0031.0, from 6.1.1x through 6.1.1004.0, from 6.1.1x through 6.1.1202.0, from 6.2.0x through 6.2.0006.0; Symphony Plus SD Series: A_0, A_1, A_2.003, A_3.005, A_4.001, B_0.005; Symphony Plus MR (Melody Rack): from 3.10 through 3.52; S+ Operations: 2.1, 2.2, 2.3, 3.3.
- Product
- AC800M (System 800xA)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 13, 2026A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplyingCVE-2026-29628 · Other software · reported by MITREMedium 6.2
A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 13, 2026Stack overflow vulnerability in the media platform.CVE-2026-34852 · Other software · Huawei · reported by psirt@huawei.comMedium 6.1
Stack overflow vulnerability in the media platform. Impact: Successful exploitation of this vulnerability may affect availability.
- Product
- HarmonyOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordconsumer.huawei.comconsumer.huawei.com
Apr 12, 2026Echo Mirage 3.1 contains a stack buffer overflow vulnerability that allows local attackers to crash the application or execute arbitrary code by supplying an ovCVE-2019-25705 · Other software · Sourceforge · reported by VulnCheckHigh 8.6
Echo Mirage 3.1 contains a stack buffer overflow vulnerability that allows local attackers to crash the application or execute arbitrary code by supplying an oversized string in the Rules action field. Attackers can create a malicious text file with a crafted payload exceeding buffer boundaries and paste it into the action field through the Rules dialog to trigger the overflow and overwrite the return address.
- Product
- Echo Mirage
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordinitd.shsourceforge.net
Apr 10, 2026ChargePoint Home Flex OCPP getpreq Stack-based Buffer Overflow Remote Code Execution Vulnerability.CVE-2026-4156 · Other software · ChargePoint · reported by zdi-disclosures@trendmicro.comHigh 7.5
ChargePoint Home Flex OCPP getpreq Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ChargePoint Home Flex EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OCPP messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-26339.
- Product
- Home Flex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 10, 2026NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when `sleCVE-2026-6069 · Other software · NASM · reported by cret@cert.orgHigh 7.5
NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when `slen` exceeds the buffer capacity.
- Product
- NASM
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 10, 2026A stack-based buffer overflow vulnerability exists in Notepad++ version 8.9.3 in the file drop handler component.CVE-2026-5525 · Other software · Notepad++ Project · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cMedium 6
A stack-based buffer overflow vulnerability exists in Notepad++ version 8.9.3 in the file drop handler component. When a user drags and drops a directory path of exactly 259 characters without a trailing backslash, the application appends a backslash and null terminator without proper bounds checking, resulting in a stack buffer overflow and application crash (STATUS_STACK_BUFFER_OVERRUN).
- Product
- Notepad++
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 10, 2026OpenStack Skyline before 5.0.1, 6.0.0, and 7.0.0 has a DOM-based Cross-Site Scripting (XSS) vulnerability in the console because document.write is used unsafelyCVE-2026-40212 · Other software · OpenStack · reported by MITREMedium 5.4
OpenStack Skyline before 5.0.1, 6.0.0, and 7.0.0 has a DOM-based Cross-Site Scripting (XSS) vulnerability in the console because document.write is used unsafely, which is relevant in scenarios where administrators use the console web interface to view instance console logs.
- Product
- Skyline
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netreview.opendev.org
Apr 9, 2026An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0.CVE-2026-33551 · Other software · OpenStack · reported by MITRELow 3.5
An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.
- Product
- Keystone
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.launchpad.netsecurity.openstack.org
Apr 9, 2026A stack buffer overflow exists in wolfSSL's PKCS7 implementation in the wc_PKCS7_DecryptOri() function in wolfcrypt/src/pkcs7.c.CVE-2026-5295 · Other software · wolfSSL · reported by facts@wolfssl.comMedium 5.9
A stack buffer overflow exists in wolfSSL's PKCS7 implementation in the wc_PKCS7_DecryptOri() function in wolfcrypt/src/pkcs7.c. When processing a CMS EnvelopedData message containing an OtherRecipientInfo (ORI) recipient, the function copies an ASN.1-parsed OID into a fixed 32-byte stack buffer (oriOID[MAX_OID_SZ]) via XMEMCPY without first validating that the parsed OID length does not exceed MAX_OID_SZ. A crafted CMS EnvelopedData message with an ORI recipient containing an OID longer than 32 bytes triggers a stack buffer overflow. Exploitation requires the library to be built with --enable-pkcs7 (disabled by default) and the application to have registered an ORI decrypt callback via wc_PKCS7_SetOriDecryptCb().
- Product
- wolfSSL
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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