CVE-2025-34158

critical

Description

Plex Media Server (PMS) versions 1.41.7.x through 1.42.0.x are affected by an unspecified security vulnerability reported via Plex’s bug bounty program. While technical details have not been publicly disclosed, the issue was acknowledged by the vendor and resolved in version 1.42.1. The vulnerability may pose a risk to system integrity, confidentiality, or availability, prompting a strong recommendation for all users to upgrade immediately.

References

https://www.vulncheck.com/advisories/plex-media-server-unspecified

https://www.tenable.com/plugins/nessus/250294

https://www.runzero.com/blog/plex/

https://www.plex.tv/media-server-downloads/

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

https://forums.plex.tv/t/plex-media-server-security-update/928341

Details

Source: Mitre, NVD

Published: 2025-08-21

Updated: 2025-08-22

Risk Information

CVSS v2

Base Score: 7.5

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

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 10

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Severity: Critical

EPSS

EPSS: 0.00102