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.
530 results · page 6 of 11
Feb 9, 2023A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version 4.4.56 and earlier with their DHCPv6 prefix dCVE-2023-23912 · Other software · UI · reported by support@hackerone.comHigh 8.8
A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version 4.4.56 and earlier with their DHCPv6 prefix delegation set to dhcpv6-stateless or dhcpv6-stateful, allows a malicious actor directly connected to the WAN interface of an affected device to create a remote code execution vulnerability.
- Product
- USG Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.ui.comcommunity.ui.com
Feb 6, 2023TOTOlink A7100RU(V7.4cu.2313_B20191024) was discovered to contain a command injection vulnerability via the country parameter at setting/delStaticDhcpRules.CVE-2023-24276 · Other software · Totolink · reported by MITRECritical 9.8
TOTOlink A7100RU(V7.4cu.2313_B20191024) was discovered to contain a command injection vulnerability via the country parameter at setting/delStaticDhcpRules.
- Product
- A7100ru Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 2, 2023D-Link DIR-846 Firmware FW100A53DBR was discovered to contain a remote command execution (RCE) vulnerability via the lan(0)_dhcps_staticlist parameter.CVE-2022-46552 · Other software · Dlink · reported by MITREHigh 8.8
D-Link DIR-846 Firmware FW100A53DBR was discovered to contain a remote command execution (RCE) vulnerability via the lan(0)_dhcps_staticlist parameter. This vulnerability is exploited via a crafted POST request.
- Product
- Dir-846 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.comcwe.mitre.org
Jan 20, 2023TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the servername parameter in the setting/delStaticDhcpRuleCVE-2022-48123 · Other software · Totolink · reported by MITRECritical 9.8
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the servername parameter in the setting/delStaticDhcpRules function.
- Product
- A7100ru Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 20, 2023TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the dayvalid parameter in the setting/delStaticDhcpRules CVE-2022-48122 · Other software · Totolink · reported by MITRECritical 9.8
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the dayvalid parameter in the setting/delStaticDhcpRules function.
- Product
- A7100ru Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 20, 2023TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the rsabits parameter in the setting/delStaticDhcpRules fCVE-2022-48121 · Other software · Totolink · reported by MITRECritical 9.8
TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the rsabits parameter in the setting/delStaticDhcpRules function.
- Product
- A7100ru Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 26, 2022In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, attackers can make a crafted request to api/?api=add_server&DHCP= to add an authorized_keyCVE-2021-45466 · Other software · Control-webpanel · reported by MITRECritical 9.8
In CWP (aka Control Web Panel or CentOS Web Panel) before 0.9.8.1107, attackers can make a crafted request to api/?api=add_server&DHCP= to add an authorized_keys text file in the /resources/ folder.
- Product
- Webpanel
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcontrol-webpanel.comoctagon.net
Dec 23, 2022D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the lan(0)_dhcps_staticlist parameter in the SetIpMacBindSettings funCVE-2022-46641 · Other software · Dlink · reported by MITRECritical 9.9
D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the lan(0)_dhcps_staticlist parameter in the SetIpMacBindSettings function.
- Product
- Dir-846 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 20, 2022Tenda F1203 V2.0.1.6 was discovered to contain a buffer overflow via the page parameter at /goform/DhcpListClient.CVE-2022-46548 · Network & remote access · Tenda · reported by MITREHigh 7.5
Tenda F1203 V2.0.1.6 was discovered to contain a buffer overflow via the page parameter at /goform/DhcpListClient.
- Product
- F1203 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 14, 2022There is a vulnerability in DHCPv6 packet parsing code that could be explored by remote attacker to craft a packet that could cause buffer overflow in a memcpy CVE-2022-0324 · Computers, phones & browsers · Linux Foundation · reported by cve_disclosure@tech.gov.sgHigh 8.1
There is a vulnerability in DHCPv6 packet parsing code that could be explored by remote attacker to craft a packet that could cause buffer overflow in a memcpy call, leading to out-of-bounds memory write that would cause dhcp6relay to crash. Dhcp6relay is a critical process and could cause dhcp relay docker to shutdown. Discovered by Eugene Lim of GovTech Singapore.
- Product
- Software for Open Networking in the Cloud (SONiC)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comgovtech-csg.github.io
Oct 11, 2022Windows DHCP Client Information Disclosure VulnerabilityCVE-2022-38026 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Windows DHCP Client Information Disclosure Vulnerability
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmsrc.microsoft.comportal.msrc.microsoft.com
Oct 11, 2022Windows DHCP Client Elevation of Privilege VulnerabilityCVE-2022-37980 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Windows DHCP Client Elevation of Privilege Vulnerability
- Product
- Windows 10 Version 21H1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmsrc.microsoft.comportal.msrc.microsoft.com
Oct 7, 2022In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longeCVE-2022-2929 · Other software · ISC · reported by security-officer@isc.orgMedium 6.5
In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.
- Product
- ISC DHCP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.isc.orglists.debian.org
Oct 7, 2022In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the optCVE-2022-2928 · Other software · ISC · reported by security-officer@isc.orgMedium 6.5
In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.
- Product
- ISC DHCP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.isc.orglists.debian.org
Sep 30, 2022A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, rCVE-2022-20847 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of DHCP messages. An attacker could exploit this vulnerability by sending malicious DHCP messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
- Product
- Cisco IOS XE Software
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtools.cisco.comtools.cisco.com
Sep 23, 2022Tenda W20E router V15.11.0.6 (US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC) contains a stack overflow vulnerability in the function formDelDhcpRule with the rCVE-2022-40868 · Network & remote access · Tenda · reported by MITRECritical 9.8
Tenda W20E router V15.11.0.6 (US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC) contains a stack overflow vulnerability in the function formDelDhcpRule with the request /goform/delDhcpRules/
- Product
- W20e Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2022Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function fromDhcpListClient with a combined parameter "list*" ("%s%d","liCVE-2022-40869 · Network & remote access · Tendacn · reported by MITRECritical 9.8
Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function fromDhcpListClient with a combined parameter "list*" ("%s%d","list").
- Product
- Ac15 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2022In Tenda G3 US_G3V3.0br_V15.11.0.6(7663)_EN_TDE, in httpd binary, the addDhcpRule function has a buffer overflow caused by sscanf.CVE-2022-36585 · Network & remote access · Tenda · reported by MITRECritical 9.8
In Tenda G3 US_G3V3.0br_V15.11.0.6(7663)_EN_TDE, in httpd binary, the addDhcpRule function has a buffer overflow caused by sscanf.
- Product
- G3 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 25, 2022Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the page parameter in the function fromDhcpListClient.CVE-2022-37806 · Network & remote access · Tenda · reported by MITRECritical 9.8
Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the page parameter in the function fromDhcpListClient.
- Product
- Ac1206 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 12, 2022Improper access control vulnerability in sendDHCPACKBroadcast function of SemWifiApClient prior to SMR Jul-2022 Release 1 allows attacker to access wifi ap clieCVE-2022-30752 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comLow 3.3
Improper access control vulnerability in sendDHCPACKBroadcast function of SemWifiApClient prior to SMR Jul-2022 Release 1 allows attacker to access wifi ap client mac address that connected by using WIFI_AP_STA_STATE_CHANGED action.
- Product
- Samsung Mobile Devices
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurity.samsungmobile.comsecurity.samsungmobile.com
Jul 12, 2022Improper access control vulnerability in sendDHCPACKBroadcast function of SemWifiApClient prior to SMR Jul-2022 Release 1 allows attacker to access wifi ap clieCVE-2022-30751 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comLow 3.3
Improper access control vulnerability in sendDHCPACKBroadcast function of SemWifiApClient prior to SMR Jul-2022 Release 1 allows attacker to access wifi ap client mac address that connected by using WIFI_AP_STA_DHCPACK_EVENT action.
- Product
- Samsung Mobile Devices
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurity.samsungmobile.comsecurity.samsungmobile.com
Jul 3, 2022HOME SPOT CUBE2 V102 contains an OS command injection vulnerability due to improper processing of data received from DHCP server.CVE-2022-33948 · Other software · KDDI CORPORATION · reported by vultures@jpcert.or.jpHigh 8.8
HOME SPOT CUBE2 V102 contains an OS command injection vulnerability due to improper processing of data received from DHCP server. An adjacent attacker may execute an arbitrary OS command on the product if a malicious DHCP server is placed on the WAN side of the product.
- Product
- HOME SPOT CUBE2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 1, 2022Tenda M3 V1.0.0.12 was discovered to contain a stack overflow via the listN parameter in the function fromDhcpListClient.CVE-2022-32039 · Network & remote access · Tenda · reported by MITREHigh 7.5
Tenda M3 V1.0.0.12 was discovered to contain a stack overflow via the listN parameter in the function fromDhcpListClient.
- Product
- M3 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 10, 2022D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the IPADDR and nvmacaddr parameters in /goform/form2Dhcpip.CVE-2022-29322 · Other software · Dlink · reported by MITRECritical 9.8
D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the IPADDR and nvmacaddr parameters in /goform/form2Dhcpip.
- Product
- Dir-816 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 27, 2022component/common/network/dhcp/dhcps.c in ambiot amb1_sdk (aka SDK for Ameba1) before 2022-03-11 mishandles data structures for DHCP packet data.CVE-2022-29859 · Other software · Amb1 SDK Project · reported by MITRECritical 9.8
component/common/network/dhcp/dhcps.c in ambiot amb1_sdk (aka SDK for Ameba1) before 2022-03-11 mishandles data structures for DHCP packet data.
- Product
- Amb1 SDK
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comamebaiot.com
Apr 10, 2022D-Link DIR-619 Ax v1.00 was discovered to contain a stack overflow in the function formSetWanDhcpplus.CVE-2022-27290 · Other software · Dlink · reported by MITREHigh 7.5
D-Link DIR-619 Ax v1.00 was discovered to contain a stack overflow in the function formSetWanDhcpplus. This vulnerability allows attackers to cause a Denial of Service (DoS) via the curTime parameter.
- Product
- Dir-619 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 15, 2022Arris TR3300 v1.0.13 were discovered to contain a command injection vulnerability in the dhcp function via the hostname parameter.CVE-2022-27001 · Other software · Commscope · reported by MITRECritical 9.8
Arris TR3300 v1.0.13 were discovered to contain a command injection vulnerability in the dhcp function via the hostname parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
- Product
- Arris Tr3300 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 3, 2022Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddDhcpBindRule.CVE-2022-24172 · Network & remote access · Tendacn · reported by MITREHigh 7.5
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddDhcpBindRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the addDhcpRules parameter.
- Product
- G1 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 3, 2022Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule.CVE-2021-45994 · Network & remote access · Tendacn · reported by MITREHigh 7.5
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.
- Product
- G1 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comexchange.xforce.ibmcloud.com
Jan 18, 2022A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an CVE-2022-22179 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 6.5
A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). In a scenario where DHCP relay or local server is configured the problem can be triggered if a DHCPv4 packet with specific options is received leading to a corruption of the options read from the packet. This corruption can then lead to jdhcpd crash and restart. This issue affects: Juniper Networks Junos OS 17.4R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R2, 21.2R3; 21.3 versions prior to 21.3R1-S1, 21.3R2.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Jan 18, 2022An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unautCVE-2022-22176 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker sending a malformed DHCP packet to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If option-82 is configured in a DHCP snooping / -security scenario, jdhcpd crashes if a specific malformed DHCP request packet is received. The DHCP functionality is impacted while jdhcpd restarts, and continued exploitation of the vulnerability will lead to the unavailability of the DHCP service and thereby a sustained DoS. This issue affects Juniper Networks Junos OS 13.2 version 13.2R1 and later versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R2-S7, 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R1-S1, 21.2R2. This issue does not affe
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Jan 18, 2022An Improper Input Validation vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to causeCVE-2022-22163 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
An Improper Input Validation vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If a device is configured as DHCPv6 local server and persistent storage is enabled, jdhcpd will crash when receiving a specific DHCPv6 message. This issue affects: Juniper Networks Junos OS All versions prior to 15.1R7-S11; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R2.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Dec 31, 2021Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply).CVE-2021-45956 · Other software · thekelleys · reported by MITRECritical 9.8
Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
- Product
- dnsmasq
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.chromium.orggithub.com
Dec 31, 2021Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp).CVE-2021-45952 · Other software · Thekelleys · reported by MITRECritical 9.8
Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
- Product
- Dnsmasq
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.chromium.orggithub.com
Oct 19, 2021In broadband environments, including but not limited to Enhanced Subscriber Management, (CHAP, PPP, DHCP, etc.), on Juniper Networks Junos OS devices where RADICVE-2021-31378 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 6.8
In broadband environments, including but not limited to Enhanced Subscriber Management, (CHAP, PPP, DHCP, etc.), on Juniper Networks Junos OS devices where RADIUS servers are configured for managing subscriber access and a subscriber is logged in and then requests to logout, the subscriber may be forced into a "Terminating" state by an attacker who is able to send spoofed messages appearing to originate from trusted RADIUS server(s) destined to the device in response to the subscriber's request. These spoofed messages cause the Junos OS General Authentication Service (authd) daemon to force the broadband subscriber into this "Terminating" state which the subscriber will not recover from thereby causing a Denial of Service (DoS) to the endpoint device. Once in the "Terminating" state, the endpoint subscriber will no longer be able to access the network. Restarting the authd daemon on the Junos OS device will temporarily clear the subscribers out of the "Terminating" state. As long as the attacker continues to send these spoofed packets and subscribers request to be logged out, the subscribers will be returned to the "Terminating" state thereby creating a persistent Denial of Service
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netjuniper.net
Oct 19, 2021A local privilege escalation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged user to cause the Juniper DHCP daemoCVE-2021-31359 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.8
A local privilege escalation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged user to cause the Juniper DHCP daemon (jdhcpd) process to crash, resulting in a Denial of Service (DoS), or execute arbitrary commands as root. Continued processing of malicious input will repeatedly crash the system and sustain the Denial of Service (DoS) condition. Systems are only vulnerable if jdhcpd is running, which can be confirmed via the 'show system processes' command. For example: root@host# run show system processes extensive | match dhcp 26537 root -16 0 97568K 13692K RUN 0 0:01 3.71% jdhcpd This issue affects: Juniper Networks Junos OS: All versions, including the following supported releases: 15.1 versions prior to 15.1R7-S10; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Sep 9, 2021A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of theCVE-2021-34737 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS) condition. This vulnerability exists because certain DHCPv4 messages are improperly validated when they are processed by an affected device. An attacker could exploit this vulnerability by sending a malformed DHCPv4 message to an affected device. A successful exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the dhcpd process. While the dhcpd process is restarting, which may take up to approximately two minutes, DHCPv4 server services are unavailable on the affected device. This could temporarily prevent network access to clients that join the network during that time period. Note: Only the dhcpd process crashes and eventually restarts automatically. The router does not reload.
- Product
- Cisco IOS XR Software
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtools.cisco.comtools.cisco.com
Jun 2, 2021A flaw was found in Red Hat Satellite, which allows a privileged attacker to read OMAPI secrets through the ISC DHCP of Smart-Proxy.CVE-2020-14335 · Other software · Redhat · reported by Red HatMedium 5.5
A flaw was found in Red Hat Satellite, which allows a privileged attacker to read OMAPI secrets through the ISC DHCP of Smart-Proxy. This flaw allows an attacker to gain control of DHCP records from the network. The highest threat from this vulnerability is to system availability.
- Product
- Satellite
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.redhat.combugzilla.redhat.com
May 26, 2021In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.CVE-2021-25217 · Other software · ISC · reported by security-officer@isc.orgHigh 7.4
In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series) are beyond their End-of-Life (EOL) and no longer supported by ISC. From inspection it is clear that the defect is also present in releases from those series, but they have not been officially tested for the vulnerability), The outcome of encountering the defect while reading a lease that will trigger it varies, according to: the component being affected (i.e., dhclient or dhcpd) whether the package was built as a 32-bit or 64-bit binary whether the compiler flag -fstack-protection-strong was used when compiling In dhclient, ISC has not successfully reproduced the error on a 64-bit system. However, on a 32-bit system it is possible to cause dhclient to crash when reading an improper lease, which could cause network connectivity problems for an affected system due to the absence of a running DHCP client process. In dhcpd, when run in DHCPv4 or DHCPv6 mode: if the dhcpd server binary was built for a 32-bit architecture AND the -fstack-protection-strong flag was specified to the compiler, dhcpd may exit while parsing a
- Product
- ISC DHCP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comcert-portal.siemens.com
Apr 22, 2021An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cauCVE-2021-0267 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netjuniper.net
Apr 22, 2021On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCVE-2021-0241 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a specific DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of these specific packets will repeatedly crash the JDHCPD process and sustain the Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects: Juniper Networks Junos OS 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Apr 22, 2021On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon CVE-2021-0240 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Mar 10, 2021NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices allow unauthenticated users to modify the switch DHCP configuration by sending the corresponding write request commaCVE-2020-35226 · Network & remote access · Netgear · reported by MITREHigh 7.1
NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices allow unauthenticated users to modify the switch DHCP configuration by sending the corresponding write request command.
- Product
- Gs116e Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordresearch.nccgroup.comresearch.nccgroup.com
Feb 9, 2021gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.CVE-2021-26676 · Other software · Intel · reported by MITREMedium 6.5
gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.
- Product
- Connman
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.suse.comgit.kernel.org
Jan 15, 2021A vulnerability in processing of certain DHCP packets from adjacent clients on EX Series and QFX Series switches running Juniper Networks Junos OS with DHCP locCVE-2021-0217 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.4
A vulnerability in processing of certain DHCP packets from adjacent clients on EX Series and QFX Series switches running Juniper Networks Junos OS with DHCP local/relay server configured may lead to exhaustion of DMA memory causing a Denial of Service (DoS). Over time, exploitation of this vulnerability may cause traffic to stop being forwarded, or to crashing of the fxpc process. When Packet DMA heap utilization reaches 99%, the system will become unstable. Packet DMA heap utilization can be monitored through the following command: user@junos# request pfe execute target fpc0 timeout 30 command "show heap" ID Base Total(b) Free(b) Used(b) % Name -- ---------- ----------- ----------- ----------- --- ----------- 0 213301a8 536870488 387228840 149641648 27 Kernel 1 91800000 8388608 3735120 4653488 55 DMA 2 92000000 75497472 74452192 1045280 1 PKT DMA DESC 3 d330000 335544320 257091400 78452920 23 Bcm_sdk 4 96800000 184549376 2408 184546968 99 Packet DMA <--- 5 903fffe0 20971504 20971504 0 0 Blob An indication of the issue occurring may be observed through the following log messages: Dec 10 08:07:00.124 2020 hostname fpc0 brcm_pkt_buf_alloc:523 (buf alloc) failed allocating packet buff
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Nov 12, 2020Out-of-bounds read in DHCP subsystem for Intel(R) AMT, Intel(R) ISM versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an unauthenticateCVE-2020-8753 · Other software · Intel · reported by secure@intel.comHigh 7.5
Out-of-bounds read in DHCP subsystem for Intel(R) AMT, Intel(R) ISM versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an unauthenticated user to potentially enable information disclosure via network access.
- Product
- Active Management Technology Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurity.netapp.comintel.com
Oct 28, 2020An issue was discovered in Dual DHCP DNS Server 7.40.CVE-2020-26133 · Other software · Dual Dhcp DNS Server Project · reported by MITREHigh 7.8
An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.
- Product
- Dual Dhcp DNS Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 28, 2020Issues were discovered in Open DHCP Server (Regular) 1.75 and Open DHCP Server (LDAP Based) 0.1Beta.CVE-2020-26131 · Other software · Open Dhcp Server Project · reported by MITREHigh 7.8
Issues were discovered in Open DHCP Server (Regular) 1.75 and Open DHCP Server (LDAP Based) 0.1Beta. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenDHCPServer.exe (Regular) or the OpenDHCPLdap.exe (LDAP Based) binary.
- Product
- Open Dhcp Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 16, 2020On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon.CVE-2020-1672 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.5
On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
Oct 16, 2020On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCVE-2020-1671 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 7.5
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a malformed DHCPv6 packet is received, resulting with the restart of the daemon. This issue only affects DHCPv6, it does not affect DHCPv4. This issue affects: Juniper Networks Junos OS 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.2X75 versions prior to 18.2X75-D65; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.2 version 19.2R2 and later versions; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2; This issue does not affect Juniper Networks Junos OS prior to 17.4R1.
- Product
- Junos OS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.juniper.netkb.juniper.net
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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