CVE-2026-19314
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS vector
- 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
- EPSS probability
- 0.32%
- CWE
- CWE-191, CWE-787
- Published
- 2026-08-27
- Last modified
- 2026-09-03
Affected products
- WatchGuard Fireware OS
- WatchGuard Fireware OS
- WatchGuard Fireware OS
Weakness type
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