KEV digest · 17–23 Oct 2026
In the window 17–23 Oct 2026, CISA added 8 vulnerabilities to the Known Exploited Vulnerabilities (KEV) catalog — each one has reliable evidence of exploitation in the wild. Plex accounts for 4 of the 8. US federal agencies must remediate them by 23 Oct 2026 – 3 Nov 2026; treat that as the ceiling, not the target.
CISA required action (every entry): Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Collabora · Collabora Online – Built-in CODE Server
Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't running.
added 2026-10-23 · federal due date 2026-10-26
EG Secure Solutions · SiteGuard Server Edition
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 2026-10-20 · federal due date 2026-10-23
Plex · Media Server
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 2026-10-20 · federal due date 2026-10-23
Arista · VeloCloud Orchestrator
Arista VeloCloud Orchestrator on-prem contains a SQL injection vulnerability that may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator.
added 2026-10-23 · federal due date 2026-10-26
Plex · Media Server
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 2026-10-20 · federal due date 2026-10-23
Plex · Media Server
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 2026-10-20 · federal due date 2026-11-03
Plex · Media Server
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 2026-10-20 · federal due date 2026-11-03
Siemens · Software Center
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 2026-10-20 · federal due date 2026-11-03
The catalog now holds 1,756 entries. 35 were added in the last 30 days, down from 46 in the 30 days before. Year to date, 272 additions in 2026 against 208 by the same date in 2025. For scale: 4,535 new CVEs were published in the same window. 8 confirmed-exploited additions is about 1 in 567 — which is why patching by severity alone does not scale.
Run your own vendors and products through stack check — it is pre-filled with this digest's vendors and also gives you an RSS feed for future additions. The long-run picture is on CVE Trends.
How this is made: generated automatically every few days from the CISA KEV catalog and FIRST EPSS scores (probability of exploitation in the next 30 days, as of publication). Descriptions and required actions are CISA's own wording. Federal due dates apply to US agencies under BOD 22-01; for everyone else they are a sensible upper bound.
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