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Critical9.3WatchGuard

Critical [CVE-2024-6592] WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass

This critical-severity WatchGuard advisory covers CVE-2024-6592 affecting SSO Client, SSO Agent.

CVE-2024-6592 Published Sep 25, 2024Updated by vendor Aug 7, 2026
Affected products & platforms
WatchGuardUnclassified
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Summary

An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.

In the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host.

This vulnerability cannot be used by an attacker to gain access to user credentials.

Affected products named by the advisory: SSO Client; SSO Agent.

Affected versions
  • SSO Client 12.0 through 12.7
  • SSO Client 12.0 through 12.5.4
  • SSO Agent 12.0 through 12.10.2

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

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