CVE-2026-121640 WatchGuard AuthPoint Gateway Capture-replay Allows Unauthorized Administrative Actions

CriticalCVSS 9.1

Published: 2026-11-04 16:44
Updated: 2026-11-04 20:20
Exploit status: No public exploit known

Description

An Authentication Bypass by Capture-replay vulnerability in WatchGuard AuthPoint Gateway allows an attacker who has observed a legitimate request between AuthPoint Gateway components to replay it and perform unauthorized administrative actions, including disrupting authentication services.

Affected products

Product	Affected versions	Fixed in
WatchGuard AuthPoint Authentication Gateway	>= 1.0, < 7.6.0	7.6.0

References

psirt.watchguard.com vendor-advisory

CVSS v4.0

9.1 Critical

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: Present
Privileges Required: None
User Interaction: None
Vulnerable System Confidentiality: None
Vulnerable System Integrity: High
Vulnerable System Availability: High
Subsequent System Confidentiality: None
Subsequent System Integrity: High
Subsequent System Availability: High

Weakness & likelihood

EPSS (exploitation probability, 30 days): Not available
CWE: CWE-294

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.