CVE-2025-34158

CVE Enrichment

CVSS: 8.5 HIGH
EPSS: 0.59%
EPSS Percentile: 47.52%
CISA KEV: Not listed

Description

Plex Media Server (PMS) 1.41.7.x through 1.42.0.x before 1.42.1 is affected by incorrect resource transfer between spheres because /myplex/account provides the credentials of the server owner (and a /api/resources call reveals other servers accessible by that server owner).

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 21-Aug-2025 21:15
Last Modified: 17-Jun-2026 16:13
EPSS Date: 2026-10-21
CWE: CWE-669

CVSS Vector


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

References

Last enrichment sync: 22-Oct-2026 01:10
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (3)

#Plex Over 36,000 Internet-Exposed Plex Servers Remain Unpatched Against Security Flaws
The alert follows past Plex issues, including CVE-2025-34158 and CVE-2020-5741, which were tied to account exposure and the LastPass breach. Plex Urges Users to Update Media Server and Desktop After Fixing Security Flaws
Plex previously warned about CVE-2025-34158 and an actively exploited Plex RCE flaw, CVE-2020-5741. Plex urges users to patch multiple security flaws in Media Server and Desktop

CVE (1)

MITRE ATT&CK (2)

Vendors (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.