CVE-2026-8247
WatchGuard Firebox admd Out of Bounds Write Vulnerability
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.
| CWE | CWE-120 |
| Vendor | watchguard |
| Product | fireware os |
| Published | Jul 2, 2026 |
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Affected Versions
WatchGuard / Fireware OS
11.0 ≤ 11.12.4+541730 12.0 ≤ 12.12 12.5 ≤ 12.5.18 2025.1 ≤ 2026.2
References
Credits
Xander Mackenzie | @thetrueartist working with TrendAI Zero Day Initiative