CVE-2026-121639 PUBLISHED

WatchGuard AuthPoint Gateway Improper Authentication Allows Unauthenticated Denial of Service

Assigner: WatchGuard
Reserved: 03.11.2026 Published: 04.11.2026 Updated: 04.11.2026

A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows a remote unauthenticated attacker with network access to the AuthPoint Gateway host to disrupt authentication services and delete the local directory synchronization configuration.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:H
CVSS Score: 9.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	WatchGuard
Product	AuthPoint Authentication Gateway
Versions	Default: unaffected affected from 1.0 to 7.6.0 (excl.)

Affected Configurations

This vulnerability affects AuthPoint Gateway deployments configured with an LDAP or Active Directory provider.

Exploits

WatchGuard is not aware of any exploitation of this vulnerability in the wild.

Solutions

AuthPoint Authentication Gateway 7.6.0

Credits

WatchGuard AI Security Research finder

References

https://psirt.watchguard.com/CVE-2026-121639

Problem Types

CWE-252 CWE
CWE-287 CWE
CWE-306 CWE