SB2026013018 - Authentication bypass via LDAP injection in WatchGuard Firebox Fireware OS
Published: January 30, 2026
Security Bulletin ID
SB2026013018
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) LDAP injection (CVE-ID: CVE-2026-1498)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to improper input validation when processing DLAP queries. A remote non-authenticated attacker can send a specially crafted LDAP query to the application via an exposed authentication or management interface, bypass authentication process and gain unauthorized access to the application.
Remediation
Install update from vendor's website.