CVE-2026-81851
CVE-2026-81851: 1 tracked advisory record across WatchGuard. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
WatchGuard
1 advisory- Advisory severityMedium6.9
Medium [CVE-2026-81851] Fireware OS Heap-Based Buffer Overflow in iked Allows Denial of Service
CVE-2026-81851Source published Source updated
A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.
- Affected products in this advisory
- Fireware OS
- Source-reported affected versions
- Fireware OS 2025.0 before 2026.2.1
- Fireware OS 12.0 before 12.12.1
- Fireware OS 12.0 before 12.11.9
- Fireware OS 12.0 before 12.5.18
- Source-reported fixed versions
- 2026.2.1
- 12.12.1
- 12.11.9
- 12.5.18
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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