PatchTheCVEopenbsd vulnerabilities and fixes
Recent CVEs affecting openbsd, with upgrade or downgrade steps. 1 tracked.
openbsd has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-06-18. Highest priority: CVE-2026-56099 (score 39/100).
- CVE-2026-56099 MEDIUM 5.3 UPGRADE OpenBSD before commit 6a23123 (2026-06-18) contains an out-of-bounds read vulnerability in the mpls_do_error f
FAQ
How do I fix openbsd 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 openbsd being exploited right now?
None of the tracked openbsd CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which openbsd CVE should I patch first?
CVE-2026-56099 currently ranks highest (39/100): OpenBSD before commit 6a23123 (2026-06-18) contains an out-of-bounds read vulnerability in the mpls_do_error f.