CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Plex Media Server Remote Code Execution Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
Affected products
plex: media server; microsoft: windows
References5
- packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows… ExploitThird Party AdvisoryVDB Entry
- www.tenable.com/security/research/tra-2020-32 ExploitThird Party Advisory
- packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows… ExploitThird Party AdvisoryVDB Entry
- www.tenable.com/security/research/tra-2020-32 ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 73% percentile: 99 · as of 2 November 2026
- CWE
- CWE-502