CVE-2025-34158 json
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/…
published 2025-08-21 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-25425
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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).
Patch / fix
- Plex Media Server 1.42.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 14 mo ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected products
- Plex Media Server
Classification
- Weakness
-
- CWE-669 Incorrect Resource Transfer Between Spheres
References
- plex.tv /media-server-downloads/
- forums.plex.tv /t/plex-media-server-security-update/928341
- bleepingcomputer.com /news/security/plex-warns-users-to-patch-security-vulnerability-immediately/
- runzero.com /blog/plex/
- tenable.com /plugins/nessus/250294
- vulncheck.com /advisories/plex-media-server-unspecified
- github.com /lufinkey/vulnerability-research/tree/main/CVE-2025-34158
- github.com /lufinkey/vulnerability-research/blob/main/CVE-2025-34158/README.md
Sources
- CVE List CVE-2025-34158
- NVD CVE-2025-34158
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