Search/CVE-2026-121638
● CVE

CVE-2026-121638

DiscoveredNov 4, 2026UpdatedNov 4, 2026

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.

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CVSS v3.1
—
EPSS
0.29%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
1
sources referencing this CVE
Related IOCs
0
seen in the same coverage
Connections
3 relationships
Timeline
disclosure → media coverage
Nov 4, 2026
Disclosure — published as a CVE record.
Nov 5, 2026
securityweek.com reports: Cisco, WatchGuard Release Patches; SonicWall Won’t Fix GMS Flaws