BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

CVE-2026-96656

8.6 high KEV · due 2026-10-23 exploit SSVC exploitation: none Analyzed
NVD · CVE.org · CISA KEV

Plex Media Server before 1.43.3.10861 allows an admin user to write arbitrary files that may be executed on load. The preference TranscoderH264Options is appended verbatim to x264's option string on every transcode. At startup, all .so files are run without signature, execute bit, or symbol checks.

Fix

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

CISA KEV required action · due 2026-10-23

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.

Added to the catalog 2026-10-20. CISA KEV

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

In the news 1

Change history 5

  1. StatusModified → AnalyzedNVD modified 2026-10-21 13:09
  2. References+2 references (now 6)NVD modified 2026-10-20 20:17
  3. StatusAnalyzed → ModifiedNVD modified 2026-10-20 20:17
  4. CISA KEVadded to CISA KEV, due 2026-10-23
  5. First seenCVSS 8.6 · plexNVD modified 2026-10-20 04:17

Affected (CPE criteria) 1

  • cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*

References 6