High severity · published Aug 21, 2025
CVE-2025-34158
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…
8.5
CVSS
0.6%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Media Server · Plex
1.41.7.x before 1.42.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-34158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-34158
forums.plex.tv
https://forums.plex.tv/t/plex-media-server-security-update/928341
github.com
https://github.com/lufinkey/vulnerability-research/blob/main/CVE-2025-34158/README.md
github.com
https://github.com/lufinkey/vulnerability-research/tree/main/CVE-2025-34158
www.bleepingcomputer.com
https://www.bleepingcomputer.com/news/security/plex-warns-users-to-patch-security-vulnerability-immediately/
www.plex.tv
https://www.plex.tv/media-server-downloads/
www.runzero.com
https://www.runzero.com/blog/plex/
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