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Plex known exploited vulnerabilities

CISA KEV catalog 2026.10.21 (1,754 CVEs) with FIRST EPSS scores from 2026-10-21.

CISA lists 5 Plex CVEs as exploited in the wild. 4 were added in the last 12 months (latest 2026-10-20), and 0 are known to be used in ransomware campaigns.

Plex CVEs added to CISA KEV per year
2023: 1202312026: 420264

Year = when CISA added the CVE to the catalog (KEV started in November 2021).

Patch first: highest EPSS right now

EPSS is FIRST's estimate of the chance a CVE is exploited in the next 30 days.

Most affected Plex products

Media Server (5).

All Plex CVEs in KEV

CVEProductFlawAddedFederal dueEPSSRansomware
CVE-2026-96656Media ServerMedia Server External Control of File Name or Path2026-10-202026-10-230.8%–
CVE-2026-96655Media ServerMedia Server Server-Side Request Forgery (SSRF)2026-10-202026-11-030.4%–
CVE-2026-96654Media ServerMedia Server Improper Neutralization of Encoded URI Schemes in a Web Page2026-10-202026-10-230.4%–
CVE-2026-96652Media ServerMedia Server Server-Side Request Forgery (SSRF)2026-10-202026-11-030.4%–
CVE-2020-5741Media ServerMedia Server Remote Code Execution2023-03-102023-03-3172.8%–
Federal due dates bind US federal civilian agencies (CISA binding operational directives); everyone else can use them as a priority hint. Sources: CISA KEV, FIRST EPSS.

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