high8.8
CVE-2026-8247
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary cod…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Watchguard | Fireware | from 11.0.0 before 11.12.4 from 12.5 before 12.5.19 from 2025.1 before 2026.2.1 from 12.0 before 12.12.1 Version 11.12.4 |