WatchGuard Fireware OS up to 12.5.15/12.11.6/2026.0 ldap injection

Summaryinfo

A vulnerability marked as critical has been reported in WatchGuard Fireware OS up to 12.5.15/12.11.6/2026.0. This issue affects some unknown processing. This manipulation causes ldap injection. This vulnerability is handled as CVE-2026-1498. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in WatchGuard Fireware OS up to 12.5.15/12.11.6/2026.0. It has been declared as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a ldap injection vulnerability. The CWE definition for the vulnerability is CWE-90. The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.This issue affects Fireware OS: from 12.0 through 12.11.6, from 12.5 through 12.5.15, from 2025.1 through 2026.0.

The advisory is shared at watchguard.com. This vulnerability is known as CVE-2026-1498 since 01/27/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/02/2026). MITRE ATT&CK project uses the attack technique T1505 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0263). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• WatchGuard Firebox

Productinfo

Vendor

• WatchGuard

Name

• Fireware OS

Version

• 12.5.0
• 12.5.1
• 12.5.2
• 12.5.3
• 12.5.4
• 12.5.5
• 12.5.6
• 12.5.7
• 12.5.8
• 12.5.9
• 12.5.10
• 12.5.11
• 12.5.12
• 12.5.13
• 12.5.14
• 12.5.15
• 12.11.0
• 12.11.1
• 12.11.2
• 12.11.3
• 12.11.4
• 12.11.5
• 12.11.6
• 2026

License

• commercial

CPE 2.3info

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CPE 2.2info

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Threat Intelligenceinfo

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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