PatchTheCVExeon 658x firmware vulnerabilities and fixes
Recent CVEs affecting xeon 658x firmware, with upgrade or downgrade steps. 1 tracked.
Also searched as: xeon658xfirmware.
xeon 658x firmware has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-08-11. Highest priority: CVE-2026-20716 (score 25/100).
- CVE-2026-20716 HIGH 7.0 MITIGATE MITIGATE Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation
FAQ
How do I fix xeon 658x firmware 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 xeon 658x firmware being exploited right now?
None of the tracked xeon 658x firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which xeon 658x firmware CVE should I patch first?
CVE-2026-20716 currently ranks highest (25/100): Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation .