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

303new WordPress flaws this week

390,007entries in the database

11 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
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
Jun 9, 2026Arista Extensible Operating System Incomplete Comparison with Missing Factors VulnerabilityCVE-2026-7473 · Other software · Arista · reported by psirt@arista.comExploitedMedium 6.9
Arista Extensible Operating System (EOS) contains an incomplete comparison with missing factors vulnerability when the switch incorrectly decapsulate and forwards other unexpected tunneled packet with a destination IP matching its configured decapsulation IP.
Product
Extensible Operating System
On CISA’s list since
Jun 9, 2026 (federal fix deadline Jun 23, 2026)
What to do
Attackers are using this now. Install Arista’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 arista.com arista.com
Mar 13, 2026Google Chromium V8 Improper Restriction of Operations Within the Bounds of a Memory Buffer VulnerabilityCVE-2026-3910 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium V8 contains an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Product
Chromium V8
On CISA’s list since
Mar 13, 2026 (federal fix deadline Mar 27, 2026)
What to do
Attackers are using this now. Install Google’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 chromereleases.googleblog.com issues.chromium.org
Mar 3, 2026Broadcom VMware Aria Operations Command Injection VulnerabilityCVE-2026-22719 · Other software · Broadcom · reported by security@vmware.comExploitedHigh 8.1
Broadcom VMware Aria Operations formerly known as vRealize Operations (vROps) contains a command injection vulnerability that allows an unauthenticated attacker to execute arbitrary commands, potentially leading to remote code execution during support‑assisted product migration.
Product
VMware Aria Operations
On CISA’s list since
Mar 3, 2026 (federal fix deadline Mar 24, 2026)
What to do
Attackers are using this now. Install Broadcom’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 knowledge.broadcom.com support.broadcom.com
Oct 30, 2025Broadcom VMware Aria Operations and VMware Tools Privilege Defined with Unsafe Actions VulnerabilityCVE-2025-41244 · Other software · Broadcom · reported by security@vmware.comExploitedHigh 7.8
Broadcom VMware Aria Operations and VMware Tools contain a privilege defined with unsafe actions vulnerability. A malicious local actor with non-administrative privileges having access to a VM with VMware Tools installed and managed by Aria Operations with SDMP enabled may exploit this vulnerability to escalate privileges to root on the same VM.
Product
VMware Aria Operations and VMware Tools
On CISA’s list since
Oct 30, 2025 (federal fix deadline Nov 20, 2025)
What to do
Attackers are using this now. Install Broadcom’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.broadcom.com openwall.com
Jun 22, 2023Vmware Aria Operations for Networks Command Injection VulnerabilityCVE-2023-20887 · Other software · VMware · reported by security@vmware.comExploitedCritical 9.8
VMware Aria Operations for Networks (formerly vRealize Network Insight) contains a command injection vulnerability that allows a malicious actor with network access to perform an attack resulting in remote code execution.
Product
Aria Operations for Networks
On CISA’s list since
Jun 22, 2023 (federal fix deadline Jul 13, 2023)
What to do
Attackers are using this now. Install VMware’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 vmware.com
Mar 3, 2022Microsoft Malware Protection Engine Improper Restriction of Operations VulnerabilityCVE-2017-8540 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability".
Product
Malware Protection Engine
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 24, 2022)
What to do
Attackers are using this now. Install Microsoft’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
Jan 18, 2022VMware Server Side Request Forgery in vRealize Operations Manager APICVE-2021-21975 · Other software · VMware · reported by security@vmware.comExploitedRansomwareHigh 7.5
Server Side Request Forgery (SSRF) in vRealize Operations Manager API prior to 8.4 may allow a malicious actor with network access to the vRealize Operations Manager API to perform a SSRF attack to steal administrative credentials.
Product
vRealize Operations Manager API
On CISA’s list since
Jan 18, 2022 (federal fix deadline Feb 1, 2022)
What to do
Attackers are using this now. Install VMware’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 vmware.com
Nov 3, 2021Micro Focus Operation Bridge Report (OBR) Remote Code Execution VulnerabilityCVE-2021-22502 · Other software · Micro Focus · reported by security@opentext.comExploitedCritical 9.8
Micro Focus Operation Bridge Report (OBR) contains an unspecified vulnerability that allows for remote code execution.
Product
Operation Bridge Reporter (OBR)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Micro Focus’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 softwaresupport.softwaregrp.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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