CVE-2026-81433
Fireware OS Pre-Authentication Stack Buffer Overflow in fingerd Allows Remote Code Execution
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A stack-based buffer overflow vulnerability in WatchGuard Fireware OS's DHCP fingerprinting daemon (fingerd) allows an unauthenticated attacker with adjacent network access to execute arbitrary code or crash the process by sending a specially crafted DHCP packet.
| CWE | CWE-120 CWE-121 CWE-787 |
| Vendor | watchguard |
| Product | fireware os |
| Published | Sep 29, 2026 |
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Affected Versions
WatchGuard / Fireware OS
2026.3 < 2026.3.2 2025.0 < 2026.2.3 12.0 < 12.12.3
References
Credits
Laurent GAFFIE, (secorizon.com)