CISA adds a vulnerability to its KEV catalog only when there is reliable evidence that attackers are using it. These are the 12 most recent additions, each with its EPSS score: the estimated chance of exploitation activity in the next 30 days.
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Plex Media Server External Control of File Name or Path Vulnerability
Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on load. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96655.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 0.82% chance of exploitation activity in 30 days; higher than 56.7% of scored CVEs
- Ransomware use
- Not known
What to do: if Plex Media Server runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 23 Oct 2026 (UTC).
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Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
Plex Media Server contains a server-side request forgery (SSRF) vulnerability that could allow an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96656.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 0.46% chance of exploitation activity in 30 days; higher than 38.6% of scored CVEs
- Ransomware use
- Not known
What to do: if Plex Media Server runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 3 Nov 2026 (UTC).
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Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability
Plex Media Server contains an improper neutralization of encoded URI schemes in a web page vulnerability that could allow an attacker to call other plugins' functions and supply their own parameters. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96655, and CVE-2026-96656.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 0.46% chance of exploitation activity in 30 days; higher than 39.3% of scored CVEs
- Ransomware use
- Not known
What to do: if Plex Media Server runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 23 Oct 2026 (UTC).
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Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination. This vulnerability can be chained with CVE-2026-96654, CVE-2026-96655, and CVE-2026-96656.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 0.46% chance of exploitation activity in 30 days; higher than 38.6% of scored CVEs
- Ransomware use
- Not known
What to do: if Plex Media Server runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 3 Nov 2026 (UTC).
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Siemens Software Center Uncontrolled Search Path Element Vulnerability
Siemens Software Center contains an uncontrolled search path element vulnerability that could allow an authenticated local attacker to place a specially crafted DLL in a directory that the application searches, leading to arbitrary code execution with the privileges of the affected application.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 0.24% chance of exploitation activity in 30 days; higher than 14% of scored CVEs
- Ransomware use
- Not known
What to do: if Siemens Software Center runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 3 Nov 2026 (UTC).
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CVE-2026-106931 EG Secure Solutions SiteGuard Server Edition
EG Secure Solutions SiteGuard Server Edition OS Command Injection Vulnerability
EG Secure Solutions SiteGuard Server Edition contains an OS command injection vulnerability which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.
- Added to KEV
- 20 Oct 2026 (UTC)
- EPSS
- 1.17% chance of exploitation activity in 30 days; higher than 67.2% of scored CVEs
- Ransomware use
- Not known
What to do: if EG Secure Solutions SiteGuard Server Edition runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 23 Oct 2026 (UTC).
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BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.
- Added to KEV
- 16 Oct 2026 (UTC)
- EPSS
- 1.18% chance of exploitation activity in 30 days; higher than 67.5% of scored CVEs
- Ransomware use
- Not known
What to do: if BeyondTrust Remote Support runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 19 Oct 2026 (UTC).
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Fortinet Multiple Products Path Traversal Vulnerability
FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager contain a path traversal vulnerability that may allow an authenticated attacker with admin profile and at least read-write permissions to write or delete arbitrary files via specific CLI commands.
- Added to KEV
- 16 Oct 2026 (UTC)
- EPSS
- 1.08% chance of exploitation activity in 30 days; higher than 64.9% of scored CVEs
- Ransomware use
- Not known
What to do: if Fortinet Multiple Products runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 19 Oct 2026 (UTC).
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Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions.
- Added to KEV
- 15 Oct 2026 (UTC)
- EPSS
- 12.7% chance of exploitation activity in 30 days; higher than 96.3% of scored CVEs
- Ransomware use
- Not known
What to do: if Atlassian Multiple Products runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 18 Oct 2026 (UTC).
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Cisco Secure Email Gateway Relative Path Traversal Vulnerability
Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.
- Added to KEV
- 14 Oct 2026 (UTC)
- EPSS
- 1.57% chance of exploitation activity in 30 days; higher than 75.2% of scored CVEs
- Ransomware use
- Not known
What to do: if Cisco Secure Email Gateway runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 17 Oct 2026 (UTC).
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Ahsay AhsayCBS Command Injection Vulnerability
Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating system commands via manipulation of the random parameter in the Replication Receiver component’s /rps/api/json/UpdateReceivers.do endpoint. This vulnerability can be chained with CVE-2026-105133.
- Added to KEV
- 14 Oct 2026 (UTC)
- EPSS
- 38.3% chance of exploitation activity in 30 days; higher than 98.6% of scored CVEs
- Ransomware use
- Not known
What to do: if AhsayCBS runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 17 Oct 2026 (UTC).
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Ahsay AhsayCBS Improper Authentication Vulnerability
Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vulnerability can be chained with CVE-2026-105134.
- Added to KEV
- 14 Oct 2026 (UTC)
- EPSS
- 5.79% chance of exploitation activity in 30 days; higher than 93.1% of scored CVEs
- Ransomware use
- Not known
What to do: if AhsayCBS runs anywhere you are responsible for, apply the vendor's update or mitigation now, or take it offline until you can. US federal agencies must act by 17 Oct 2026 (UTC).
