WatchGuard security advisory (AV26-649)
Serial number: AV26-649 Date: July 3, 2026 On July 2, 2026, WatchGuard published security advisories to address vulnerabilities in the following products: Fireware OS 2025.1 – version 2026.2 and prior Fireware OS 11.x - version 11.12.4_Update1 and prior Fireware OS 12.0 – version 12.12 and prior Fireware OS 12.5 – version 12.5.18 and prior Mobile VPN with SSL client for Windows – version 2026.2 and prior The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates. WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication WatchGuard Mobile VPN with SSL Windows Client Local Privilege Escalation WatchGuard Security Advisories
CSIRTS triage
- What
- Vulnerabilities in Fireware OS can lead to local privilege escalation and other security issues.
- Who is affected
- Deployments of the specified versions of Fireware OS are affected.
- Urgency
- Remediation is urgent due to the potential for local privilege escalation.
- Action
- Update Fireware OS to the latest versions.
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Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/watchguard-security-advisory-av26-649
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