CVE-2026-1498: WatchGuard Fireware OS

High severity, CVSS 7.0. EPSS: 0.9% chance of exploitation in the next 30 days.

An LDAP Injection vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to retrieve sensitive information from a connected LDAP authentication server through an exposed authentication or management web interface. This vulnerability may also allow a remote attacker to authenticate as an LDAP user with a partial identifier if they additionally have that user's valid passphrase.

Affected products

• WatchGuard Fireware OS: from 2025.1, before 2026.1 (fixed in 2026.1); from 12.0, before 12.11.7 (fixed in 12.11.7); from 12.0, before 12.5.16 (fixed in 12.5.16)

Published 2026-01-30. Last modified 2026-08-10.