CVE-2026-1498: WatchGuard Firebox LDAP Injection

Published Jan 30, 2026

Updated

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 Software

1 affected component

WatchGuard Fireware OS

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade WatchGuard Fireware OS to a version that resolves this vulnerability.
Fixed in 2026.1
Upgrade
Upgrade WatchGuard Fireware OS to a version that resolves this vulnerability.
Fixed in 12.11.7
Upgrade
Upgrade WatchGuard Fireware OS to a version that resolves this vulnerability.
Fixed in 12.5.16

Event History

Jan 30, 2026

CVE Published

via MITRE·01:02 PM

Data Sourced

via MITRE·01:02 PM

RemedyDescriptionWeakness

Data Sourced

via NVD·01:15 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2026-1498?

CVE-2026-1498 is classified as a medium severity vulnerability due to potential unauthorized access to sensitive information.

How do I fix CVE-2026-1498?

To mitigate CVE-2026-1498, update WatchGuard Fireware OS to the latest version that addresses this vulnerability.

What types of attacks does CVE-2026-1498 enable?

CVE-2026-1498 enables remote unauthenticated attackers to perform LDAP injection exploits that can reveal sensitive data.

Which versions of WatchGuard Fireware OS are affected by CVE-2026-1498?

CVE-2026-1498 affects WatchGuard Fireware OS versions from 12.0 to 12.11.6 and from 12.5 to 12.5.15, as well as version 2025.1 to 2026.0.

Is authentication required to exploit CVE-2026-1498?

No, CVE-2026-1498 can be exploited remotely without authentication, making it a significant risk.