x server vulnerabilities and fixes

Recent CVEs affecting x server, with upgrade or downgrade steps. 2 tracked.

Also searched as: xserver.

x server has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-05-05. Highest priority: CVE-2026-34000 (score 37/100).

• CVE-2026-34000 MEDIUM 6.1 MITIGATE MITIGATE A flaw was found in the X.Org X server
• CVE-2026-34002 MEDIUM 6.1 MITIGATE MITIGATE A flaw was found in the X.Org X server

FAQ

How do I fix x server vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is x server being exploited right now?

None of the tracked x server CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which x server CVE should I patch first?

CVE-2026-34000 currently ranks highest (37/100): A flaw was found in the X.Org X server.

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