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NVD security advisoryCritical

Critical advisory for An Improper Certificate Validation vulne

CVE-2026-121638 · Reported 4 Nov 2026

Full advisory details, affected packages, severity context, and original source.

Affected technology

An Improper Certificate Validation vulneAffected product

Advisory overview

An Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway allows an attacker with an on-path network position to intercept and modify communications between the AuthPoint Gateway and local authentication providers.

Related references

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An Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway allows an attacker with an on | Security report | Cevnitra