Plex , the popular app for organizing and streaming personal media collections, is warning users of certain versions of its Plex Media Server about a security issue. Users are urged to update their software immediately . Let's take a look at the details here.
Plex Media Server: Emergency fix
As BleepingComputer reports (via Tecnoblog), Plex is contacting users running server versions 1.41.7.x to 1.42.0.x, urging them to upgrade to Plex Media Server 1.42.1.10060.
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The company's message is as follows:
“Update your Plex Media Server
Dear Plex user,
We recently received a bug bounty report of a potential security issue affecting Plex Media Server versions 1.41.7.x to 1.42.0.x. Thanks to that user, we were able to fix the issue, release an updated version of the server, and continue to improve security and defenses .
You are receiving this notification because our data indicates that the Plex Media Server owned by your account is running an older version of the server. We strongly recommend that you update your Plex Media Server to the latest version as soon as possible, if you have not already done so.
The new version (1.42.1.10060 or later) is now available for update via the regular server management page, or you can download the package from our downloads page (https://www.plex.tv/media-server-downloads/).
Thank you,
The Plex Team“
See also: Chrome vulnerability allows malicious code execution
The company has not disclosed details about the vulnerability, and it has not yet been assigned a CVE identifier number.
So if you use Plex, double-check that your server is fully up to date, as now that it has become known that a serious bug has been fixed, cybercriminals will try to identify the vulnerability and exploit it.
Plex has reportedly faced security issues in the past that allowed remote code execution (RCE – one of the most serious bugs). In the case of RCE, an attacker can gain complete control of the server, read personal data, install malware, or even use the system as a “fortress” for further attacks on other machines on the same network.
Plex 's warning comes as a reminder of how important it is to regularly update software, even for applications that many users consider "innocent" because they are used for home entertainment. Plex Media Server , however, is not a simple application; it is a network server that often operates in a permanent connection to the internet and allows remote access to its content library . This in itself makes it an attractive target for cybercriminals.
See also: SAP NetWeaver: Public Exploit for chained vulnerabilities
The fact that Plex has not released details about the vulnerability suggests that it is following a “responsible disclosure” strategy. The company apparently wants to give users time to apply the update before attackers have enough information to develop an exploit. This is why the upgrade to version 1.42.1.10060 should be considered mandatory , not optional.
For the average user, the advice is clear: upgrade now. For those managing multiple Plex instances – whether in corporate environments or shared media setups – it’s important to also implement basic system hardening measures: restricting access via VPN, changing passwords regularly, disabling unused ports, and checking logs for suspicious activity.
Finally, this case highlights a timeless lesson: even the most popular and trusted applications can harbor serious bugs. Internet security is an ongoing process, not a state achieved once and for all.
