CVE-2025-34158

Aug. 21, 2025, 4:15 p.m.

10.0
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.

Product(s) Impacted

Vendor Product Versions
Plex
  • Plex Media Server
  • 1.41.7-1.42.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a plex plex_media_server 1.41.7-1.42.0 / / / / / / /

References

https://forums.plex.tv/t/plex-media-server-security-update/928341
https://www.bleepingcomputer.com/news/security/plex-warns-users-to-patch-security-vulnerability-immediately/
https://www.plex.tv/media-server-downloads/
https://www.runzero.com/blog/plex/
https://www.tenable.com/plugins/nessus/250294
https://www.vulncheck.com/advisories/plex-media-server-unspecified

Tags

CWE-20
disclosure@vulncheck.com
2025-08-21
CVE-2025-34158

CVSS Score

10.0 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: Aug. 21, 2025, 2:15 p.m.
Last Modified: Aug. 21, 2025, 4:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

disclosure@vulncheck.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.