How severe is CVE-2024-6592?

CVE-2024-6592 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-6592 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-6592?

CVE-2024-6592 primarily affects Watchguard Authentication Gateway. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-6592?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-6592 have an EU (EUVD) identifier?

Yes. CVE-2024-6592 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47657.

When was CVE-2024-6592 published?

CVE-2024-6592 was published on 2024-09-25 and last updated on 2026-08-08.

CVE-2024-6592

CVE-2024-6592 is a critical-severity vulnerability in Watchguard Authentication Gateway with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 9.3
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-47657
Weakness: CWE-863
Affected product: Watchguard Authentication Gateway
Published: 2024-09-25
Last modified: 2026-08-08

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.

Frequently asked questions

What is CVE-2024-6592?: 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.
How severe is CVE-2024-6592?: CVE-2024-6592 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-6592 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-6592?: CVE-2024-6592 primarily affects Watchguard Authentication Gateway. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-6592?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-6592 have an EU (EUVD) identifier?: Yes. CVE-2024-6592 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47657.
When was CVE-2024-6592 published?: CVE-2024-6592 was published on 2024-09-25 and last updated on 2026-08-08.

References

Affected products (3)

cpe:2.3:a:watchguard:authentication_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:macos:*:*
cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:windows:*:*

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