CVE-2026-78011
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| WatchGuard | Fireware OS | 2025.0 < 2026.2.2 | affected |
| WatchGuard | Fireware OS | 12.0 < 12.12.2 | affected |
| WatchGuard | Fireware OS | 12.0 < 12.5.20 | affected |
Weaknesses
- CWE-191: CWE-191
- CWE-787: CWE-787
References
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