CVE-2024-6592: watchguard authentication_gateway
Vulnerability summary
CVE-2024-6592 is a critical (CVSS 9.3) vulnerability in watchguard authentication_gateway. EPSS estimates a 1.17% chance of exploitation in the next 30 days, higher than 67% of scored vulnerabilities.
Timeline
- 25-09-2024PublishedVulnerability first disclosed.
- 07-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST9.3CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
1.17%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
+0.01 pp
From 1.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-306Missing Authentication for Critical FunctionThe product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
- CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Affected systems
Watchguard4 products
- authentication_gateway≤ 12.10.2
- single_sign-on_client≤ 12.5.4 | ≤ 12.7
- sso agent≥ 12.0, ≤ 12.10.2
- sso client≥ 12.0, ≤ 12.7 | ≥ 12.0, ≤ 12.5.4
1 vendor · 4 products
References
3 links- www.redteam-pentesting.de/advisories/rt-sa-2024-006Technical Description
- psirt.watchguard.com/CVE-2024-6592Vendor Advisory