Improper Certificate Validation in WatchGuard AuthPoint Gateway
CVE-2026-121638

9.1CRITICAL

Key Information:

Vendor

Watchguard

Status
AutHPoint Authentication Gateway
Vendor
CVE Published:
4 November 2026

Badges

👾 Exploit Exists

What is CVE-2026-121638?

The Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway poses a risk by enabling attackers positioned within the network to intercept and alter communications between the AuthPoint Gateway and local authentication providers. This flaw could lead to unauthorized access to sensitive information and compromise the integrity of authentication processes.

Affected Version(s)

AuthPoint Authentication Gateway 1.0 < 7.6.0

References

https://psirt.watchguard.com/CVE-2026-121638
vendor-advisory

CVSS V4

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

WatchGuard AI Security Research
.