Updated 6 h ago

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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

344new WordPress flaws this week

390,080entries in the database

29 results

Oct 4, 2026Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityCVE-2026-88779 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedHigh 8.7
Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.
Product
NetScaler
On CISA’s list since
Oct 4, 2026 (federal fix deadline Oct 7, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com community.citrix.com
Sep 27, 2026Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityCVE-2026-88772 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedCritical 9.5
Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial of service
Product
NetScaler
On CISA’s list since
Sep 27, 2026 (federal fix deadline Sep 30, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Sep 27, 2026Citrix NetScaler Improper Input Validation VulnerabilityCVE-2026-88771 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedCritical 9.5
Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands.
Product
NetScaler
On CISA’s list since
Sep 27, 2026 (federal fix deadline Sep 30, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Sep 9, 2026Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel VulnerabilityCVE-2026-19490 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedCritical 9.3
Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication.
Product
NetScaler
On CISA’s list since
Sep 9, 2026 (federal fix deadline Sep 12, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Aug 26, 2026Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityCVE-2026-8452 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedHigh 8.8
Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service.
Product
NetScaler ADC and NetScaler Gateway
On CISA’s list since
Aug 26, 2026 (federal fix deadline Aug 29, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Mar 30, 2026Citrix NetScaler Out-of-Bounds Read VulnerabilityCVE-2026-3055 · Network & remote access · Citrix · reported by 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5ExploitedCritical 9.3
Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds reads vulnerability when configured as a SAML IDP leading to memory overread.
Product
NetScaler
On CISA’s list since
Mar 30, 2026 (federal fix deadline Apr 2, 2026)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com labs.watchtowr.com
Mar 3, 2026Qualcomm Multiple Chipsets Memory Corruption VulnerabilityCVE-2026-21385 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 7.8
Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation.
Product
Multiple Chipsets
On CISA’s list since
Mar 3, 2026 (federal fix deadline Mar 24, 2026)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog docs.qualcomm.com source.android.com
Aug 26, 2025Citrix NetScaler Memory Overflow VulnerabilityCVE-2025-7775 · Network & remote access · Citrix · reported by secure@citrix.comExploitedCritical 9.2
Citrix NetScaler ADC and NetScaler Gateway contain a memory overflow vulnerability that could allow for remote code execution and/or denial of service.
Product
NetScaler
On CISA’s list since
Aug 26, 2025 (federal fix deadline Aug 28, 2025)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Jul 10, 2025Citrix NetScaler ADC and Gateway Out-of-Bounds Read VulnerabilityCVE-2025-5777 · Network & remote access · Citrix · reported by secure@citrix.comExploitedRansomwareCritical 9.3
Citrix NetScaler ADC and Gateway contain an out-of-bounds read vulnerability due to insufficient input validation. This vulnerability can lead to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
Product
NetScaler ADC and Gateway
On CISA’s list since
Jul 10, 2025 (federal fix deadline Jul 11, 2025)
What to do
Attackers are using this now. Install Citrix’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com citrixbleed.com
Jun 30, 2025Citrix NetScaler ADC and Gateway Buffer Overflow VulnerabilityCVE-2025-6543 · Network & remote access · Citrix · reported by secure@citrix.comExploitedCritical 9.2
Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
Product
NetScaler ADC and Gateway
On CISA’s list since
Jun 30, 2025 (federal fix deadline Jul 21, 2025)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com cisa.gov
Jun 3, 2025Qualcomm Multiple Chipsets Incorrect Authorization VulnerabilityCVE-2025-21479 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.6
Multiple Qualcomm chipsets contain an incorrect authorization vulnerability. This vulnerability allows for memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
Product
Multiple Chipsets
On CISA’s list since
Jun 3, 2025 (federal fix deadline Jun 24, 2025)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog docs.qualcomm.com cisa.gov
Jun 3, 2025Qualcomm Multiple Chipsets Incorrect Authorization VulnerabilityCVE-2025-21480 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.6
Multiple Qualcomm chipsets contain an incorrect authorization vulnerability. This vulnerability allows for memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
Product
Multiple Chipsets
On CISA’s list since
Jun 3, 2025 (federal fix deadline Jun 24, 2025)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog docs.qualcomm.com cisa.gov
Jun 3, 2025Qualcomm Multiple Chipsets Use-After-Free VulnerabilityCVE-2025-27038 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 7.5
Multiple Qualcomm chipsets contain a use-after-free vulnerability. This vulnerability allows for memory corruption while rendering graphics using Adreno GPU drivers in Chrome.
Product
Multiple Chipsets
On CISA’s list since
Jun 3, 2025 (federal fix deadline Jun 24, 2025)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog docs.qualcomm.com cisa.gov
Oct 8, 2024Qualcomm Multiple Chipsets Use-After-Free VulnerabilityCVE-2024-43047 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 7.8
Multiple Qualcomm chipsets contain a use-after-free vulnerability due to memory corruption in DSP Services while maintaining memory maps of HLOS memory.
Product
Multiple Chipsets
On CISA’s list since
Oct 8, 2024 (federal fix deadline Oct 29, 2024)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog docs.qualcomm.com cisa.gov
Jan 17, 2024Citrix NetScaler ADC and NetScaler Gateway Code Injection VulnerabilityCVE-2023-6548 · Network & remote access · Citrix · reported by secure@citrix.comExploitedMedium 5.5
Citrix NetScaler ADC and NetScaler Gateway contain a code injection vulnerability that allows for authenticated remote code execution on the management interface with access to NSIP, CLIP, or SNIP.
Product
NetScaler ADC and NetScaler Gateway
On CISA’s list since
Jan 17, 2024 (federal fix deadline Jan 24, 2024)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com support.citrix.com
Jan 17, 2024Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow VulnerabilityCVE-2023-6549 · Network & remote access · Citrix · reported by secure@citrix.comExploitedHigh 8.2
Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for a denial-of-service when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.
Product
NetScaler ADC and NetScaler Gateway
On CISA’s list since
Jan 17, 2024 (federal fix deadline Feb 7, 2024)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com support.citrix.com
Dec 5, 2023Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset VulnerabilityCVE-2023-33106 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.4
Multiple Qualcomm chipsets contain a use of out-of-range pointer offset vulnerability due to memory corruption in Graphics while submitting a large list of sync points in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND.
Product
Multiple Chipsets
On CISA’s list since
Dec 5, 2023 (federal fix deadline Dec 26, 2023)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Dec 5, 2023Qualcomm Multiple Chipsets Use-After-Free VulnerabilityCVE-2023-33063 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 7.8
Multiple Qualcomm chipsets contain a use-after-free vulnerability due to memory corruption in DSP Services during a remote call from HLOS to DSP.
Product
Multiple Chipsets
On CISA’s list since
Dec 5, 2023 (federal fix deadline Dec 26, 2023)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Dec 5, 2023Qualcomm Multiple Chipsets Integer Overflow VulnerabilityCVE-2023-33107 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.4
Multiple Qualcomm chipsets contain an integer overflow vulnerability due to memory corruption in Graphics Linux while assigning shared virtual memory region during IOCTL call.
Product
Multiple Chipsets
On CISA’s list since
Dec 5, 2023 (federal fix deadline Dec 26, 2023)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Dec 5, 2023Qualcomm Multiple Chipsets Use-After-Free VulnerabilityCVE-2022-22071 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.4
Multiple Qualcomm chipsets contain a use-after-free vulnerability when process shell memory is freed using IOCTL munmap call and process initialization is in progress.
Product
Multiple Chipsets
On CISA’s list since
Dec 5, 2023 (federal fix deadline Dec 26, 2023)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Oct 18, 2023Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow VulnerabilityCVE-2023-4966 · Network & remote access · Citrix · reported by secure@citrix.comExploitedRansomwareCritical 9.4
Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.
Product
NetScaler ADC and NetScaler Gateway
On CISA’s list since
Oct 18, 2023 (federal fix deadline Nov 8, 2023)
What to do
Attackers are using this now. Install Citrix’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com support.citrix.com
Jul 19, 2023Citrix NetScaler ADC and NetScaler Gateway Code Injection VulnerabilityCVE-2023-3519 · Network & remote access · Citrix · reported by secure@citrix.comExploitedRansomwareCritical 9.8
Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.
Product
NetScaler ADC and NetScaler Gateway
On CISA’s list since
Jul 19, 2023 (federal fix deadline Aug 9, 2023)
What to do
Attackers are using this now. Install Citrix’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com support.citrix.com
Mar 25, 2022Citrix Multiple Products Remote Code Execution VulnerabilityCVE-2017-6316 · Network & remote access · Citrix · reported by MITREExploitedCritical 9.8
A vulnerability has been identified in the management interface of Citrix NetScaler SD-WAN Enterprise and Standard Edition and Citrix CloudBridge Virtual WAN Edition that could result in an unauthenticated, remote attacker being able to execute arbitrary code as a root user. This vulnerability also affects XenMobile Server.
Product
NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server
On CISA’s list since
Mar 25, 2022 (federal fix deadline Apr 15, 2022)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Mar 25, 2022Citrix SD-WAN and NetScaler Command Injection VulnerabilityCVE-2019-12991 · Network & remote access · Citrix · reported by MITREExploitedHigh 8.8
Authenticated Command Injection in Citrix SD-WAN Appliance and NetScaler SD-WAN Appliance.
Product
SD-WAN and NetScaler
On CISA’s list since
Mar 25, 2022 (federal fix deadline Apr 15, 2022)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com securityfocus.com
Mar 25, 2022Citrix SD-WAN and NetScaler SQL Injection VulnerabilityCVE-2019-12989 · Network & remote access · Citrix · reported by MITREExploitedCritical 9.8
Citrix SD-WAN and NetScaler SD-WAN allow SQL Injection.
Product
SD-WAN and NetScaler
On CISA’s list since
Mar 25, 2022 (federal fix deadline Apr 15, 2022)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com securityfocus.com
Dec 1, 2021Qualcomm Multiple Chipsets Improper Input Validation VulnerabilityCVE-2020-11261 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 7.8
Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Product
Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
On CISA’s list since
Dec 1, 2021 (federal fix deadline Jun 1, 2022)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Nov 3, 2021Mediatek Multiple Chipsets Insufficient Input Validation VulnerabilityCVE-2020-0069 · Computers, phones & browsers · MediaTek · reported by security@android.comExploitedHigh 7.8
Multiple MediaTek chipsets contain an insufficient input validation vulnerability and have missing SELinux restrictions in the Command Queue drivers ioctl handlers. This causes an out-of-bounds write leading to privilege escalation. This vulnerability was observed chained with CVE-2019-2215 and CVE-2020-0041 under exploit chain "AbstractEmu."
Product
Multiple Chipsets
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install MediaTek’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog huawei.com source.android.com
Nov 3, 2021Qualcomm Multiple Chipsets Detection of Error Condition Without Action VulnerabilityCVE-2021-1906 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedMedium 6.2
Multiple Qualcomm chipsets contain a detection of error condition without action vulnerability when improper handling of address deregistration on failure can lead to new GPU address allocation failure.
Product
Multiple Chipsets
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com
Nov 3, 2021Qualcomm Multiple Chipsets Use-After-Free VulnerabilityCVE-2021-1905 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedHigh 8.4
Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.
Product
Multiple Chipsets
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Qualcomm’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog qualcomm.com qualcomm.com

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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