Race Condition Vulnerability in WatchGuard Fireware OS Affecting LDAP Authentication

CVE-2026-13368

What is CVE-2026-13368?

CVE-2026-13368 is a vulnerability found in WatchGuard's Fireware OS, specifically affecting its LDAP authentication functionality within the Mobile User VPN employing IKEv2. This vulnerability stems from a race condition that can lead to a use-after-free scenario when an external LDAP authentication server is configured. Essentially, an unauthenticated remote attacker could leverage this flaw to execute arbitrary code on Fireboxes running the affected versions of Fireware OS, allowing them to gain control over the system. This situation poses a significant threat, as it can compromise sensitive data and disrupt organizational operations, especially for businesses relying on remote user access functions secured through LDAP authentication.

Potential Impact of CVE-2026-13368

1. Arbitrary Code Execution: The most critical impact of CVE-2026-13368 is the potential for unauthorized remote code execution. An attacker could exploit this vulnerability to run malicious code within the vulnerable context, risking the integrity of the system and potentially leading to further exploitation or data loss.

2. Compromised User Access: As the vulnerability affects the Mobile User VPN, it specifically endangers systems relying on remote access. If exploited, an attacker could gain unauthorized access to sensitive organizational resources, jeopardizing user data and network security.

3. Increased Attack Surface: The presence of this vulnerability increases the attack surface for organizations using WatchGuard Fireware OS, potentially attracting threat actors and paving the way for additional security incidents, including data breaches and targeted attacks. Organizations may also suffer reputational damage and financial loss as a result of the security breach.

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