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Security releases

WatchGuard

CVE-2026-121638: An Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway allows an attacker with an on-path network position to intercept and modify com

CVE-2026-121638 Nov 4, 2026 Source: Vendor

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.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-121638
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CVE-2026-121638 BR2026-0000-042273 unclaimed
Credited as WatchGuard AI Security Research