Critical [CVE-2026-19313] Fireware OS Pre-Authentication Heap Buffer Overflow in iked Allows Remote Code Execution
This critical-severity WatchGuard advisory covers CVE-2026-19313 affecting Fireware OS.
Android app · Google Play
Monitor future WatchGuard CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
An heap overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.
- Fireware OS 2025.0 before 2026.2.2
- Fireware OS 12.0 before 12.12.2
- Fireware OS 12.0 before 12.5.20
Official advisory · high-confidence parse· fetched 55 minutes ago·verify at source
- 2026.2.2
- 12.12.2
- 12.5.20
Official advisory · high-confidence parse· fetched 55 minutes ago·verify at source
Mitigation
Upgrade to a fixed release: 2026.2.2, 12.12.2, 12.5.20. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 55 minutes ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.