CVE-2026-103594
Fireware OS Stack Buffer Overflow in WireGuard Configuration Allows Remote Code Execution
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.
| CWE | CWE-121 CWE-1284 CWE-787 |
| Vendor | watchguard |
| Product | fireware os |
| Published | Oct 27, 2026 |
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Affected Versions
WatchGuard / Fireware OS
2026.2 < 2026.4 12.12 < 12.12.4
References
Credits
WatchGuard AI Security Research