Security Vulnerability in Plex Media Server Affects User Data
CVE-2025-34158

10CRITICAL

Key Information:

Vendor: Plex
Status: Media Server
Vendor: CVE Published:; 21 August 2025

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📈 Score: 241📰 News Worthy

What is CVE-2025-34158?

CVE-2025-34158 is a security vulnerability affecting the Plex Media Server (PMS), specifically in versions ranging from 1.41.7.x to 1.42.0.x. Plex Media Server is a widely used application that organizes and streams digital media. This vulnerability, reported through Plex’s bug bounty program, has raised concerns regarding the integrity, confidentiality, and availability of user data. Although specific technical details have not been publicly disclosed, its existence indicates a potential risk to the seamless operation of the Plex Media Server and the sensitive information it manages. With the vendor flagging the issue and providing a fix in version 1.42.1, it is critical for users to upgrade to protect their systems from potential threats.

Potential impact of CVE-2025-34158

Risk to Data Integrity: The vulnerability could allow unauthorized alterations to user data, leading to issues with data authenticity and reliability, which could affect user trust and service quality.
Compromise of Confidentiality: Sensitive user data might be at risk of exposure, which could result in privacy violations and compliance issues, particularly for users storing personal or sensitive information.
Degradation of Service Availability: Exploiting this vulnerability could disrupt server operations, rendering the media server inoperable and significantly impacting the user experience for those relying on the service for their media consumption.