high7.5
CVE-2026-86134
A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management…
Impact
A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Watchguard | Fireware | from 12.0 before 12.5.21 from 12.12 before 12.12.3 from 2025.0 before 2026.2.3 from 2026.3 before 2026.3.2 |