Plex Releases Security Fixes for Media Server and Desktop Clients - Users Urged to Update Immediately
Plex has released security updates for Plex Media Server and Plex Desktop and is urging users to upgrade immediately. Plex Media Server v1.43.2 and earlier should be moved to version 1.43.3; Plex Desktop should be updated to 1.115.0. CVE identifiers have been requested, and full technical details are not public yet. This article covers the fixed versions, how to update across Windows, macOS, Linux, NAS, Docker, and other platforms, and what administrators should do now.
Summary
Plex has issued a security update for Plex Media Server and Plex Desktop and recommends that all server owners and Desktop users apply it as soon as possible. CVE identifiers have been requested; technical details will follow when they are published.
Why This Matters
Plex has not published severity scores or root-cause detail, but it has framed the release as a security update and asked for immediate action. Media servers are often reachable beyond the local network. Delaying the update could increase the risk of exploitation, particularly once technical details or proof-of-concept research becomes available especially where remote access is enabled or the server runs on a NAS that lags behind package-manager updates.
Affected and Fixed Versions
Affected:
- Plex Media Server v1.43.2 and earlier
Fixed in:
- Plex Media Server 1.43.3
- Plex Desktop 1.115.0
Packages are available from the Plex downloads page.
How to Update
Platform-specific steps are listed in the official Plex security announcement. In summary:
- Windows and macOS: Confirm automatic updates reached the fixed server build, or install manually from the downloads page.
- Linux (Ubuntu): Install the current
.debwithsudo dpkg -iusing the file downloaded. - Linux (Fedora/CentOS): Install the current
.rpmwithsudo dnf installusing the file downloaded. - Docker: Use the guidance in the official pms-docker repository.
- NVIDIA SHIELD: Install pending updates from the Google Play store.
- NAS systems: The fixed package may not appear in the vendor store yet. Download the correct build from Plex, open the NAS web interface, use the app store's manual install path (App Store / App Center / Applications), and complete the wizard.
Device-specific guides linked by Plex:
If installation fails, check the Plex Media Server NAS forums for device-specific guidance.
Recommended Actions
- Move every server and Desktop client to the fixed releases listed above.
- On NAS, use manual install when the store is still on an older build.
- Confirm the running version in server settings after the upgrade.
- Watch the Plex announcement thread for CVE IDs when they are published.
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