CuraSec

Plan active

OpenBSD Root LPE Chains 37-Year-Old Bug, Bypasses KARL/SMAP/SMEP

  • Engineer — Plan: A public PoC exists and a patch has shipped, so if you run OpenBSD 7.9 on any host, upgrade immediately. No KEV listing and LPE-only scope (requires local access first) keeps this out of Act for most shops, but the PoC lowers the bar for post-compromise escalation.
  • SOC/IR — Learn: No active exploitation campaign or IOCs are reported; the main value is understanding how KARL, SMAP, and SMEP mitigations can be chained past — useful context for evaluating kernel-hardening assumptions on any OS, but no hunt or detection action warranted today.
  • Leader — Skip
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.