CVE-2024-6592

criticalpriority · attend · 46OT risk · highEPSS 0.012 · 67 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.17% (67th) EPSS

CVSS 9.1 · critical

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.6–9.3

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 5.2

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.09.3criticalCVSS: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:Xsecondary

v4.08.8highCVSS: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:P/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimaryCWE-306USCWE-863US

exploits (1)

Public proof-of-concept and weaponised exploit code.

RedTeamPentesting/watchguard-sso-clientClient Implementation for the WatchGuard SSO Agent Protocol used for Security Research (CVE-2024-6592, CVE-2024-6593, CVE-2024-6594)PoC · poc_in_github

affected products (9)

Products and version ranges known to be affected.

WatchGuard SSO Agent≤ 12.0 ≤12.10.2enisa_euvdEU
WatchGuard SSO Client≤ 12.0 ≤12.5.4enisa_euvdEU
WatchGuard SSO Client≤ 12.0 ≤12.7enisa_euvdEU
Watchguard Technologies Inc. Authentication Gateway≤ 12.10.2fstec_bduRU
Watchguard Technologies Inc. Single Sign On Client≤ 12.7fstec_bduRU
Watchguard Technologies Inc. Single Sign On Client≤ 12.5.4fstec_bduRU
watchguard authentication gateway≤ 12.10.2nvdUScpe:2.3:a:watchguard:authentication_gateway:*:*:*:*:*:*:*:*
watchguard single sign-on client≤ 12.5.4nvdUScpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:*:*:*
watchguard single sign-on client≤ 12.7nvdUScpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2024-09-25modified 2026-08-08

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+5006 more

references (8)

External citations — patches, advisories, analysis.

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