CVE-2020-5741

high

Description

Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.

References

https://www.bleepingcomputer.com/news/security/over-36-000-plex-servers-unpatched-against-recently-disclosed-flaws/

https://thehackernews.com/2026/09/plex-urges-immediate-updates-after.html

https://www.helpnetsecurity.com/2025/08/27/plex-media-server-cve-2025-34158-attack/

https://www.bleepingcomputer.com/news/security/plex-warns-users-to-patch-security-vulnerabilities-immediately/

https://www.tenable.com/security/research/tra-2020-32

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5741

http://packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows-Remote-Code-Execution.html

Details

Source: Mitre, NVD

Published: 2020-05-08

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.2

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.72936