{"affected":[{"defaultStatus":"unaffected","product":"AuthPoint Authentication Gateway","source":"CNA: WatchGuard","vendor":"WatchGuard","versions":[{"lessThan":"7.6.0","status":"affected","version":"1.0","versionType":"semver"}]}],"cveId":"CVE-2026-121638","cwes":["CWE-295"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":9.1,"severity":"critical","source":"CNA: WatchGuard","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}],"modifiedAt":1793803454541,"publishedAt":1793803454541,"references":[{"source":"CNA: WatchGuard","tags":["vendor-advisory"],"url":"https://psirt.watchguard.com/CVE-2026-121638"}],"remediation":[{"kind":"fix","source":"CNA: WatchGuard","text":"AuthPoint Authentication Gateway 7.6.0"}],"revision":"a64af65417520ca3ad046151ca557198521de7a952dfc710e33a0650d6146ffd","sources":[{"modifiedAt":1793803454541,"name":"CNA: WatchGuard","retrievedAt":1793805018771,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121638"}],"ssvc":null,"status":"published","title":"WatchGuard AuthPoint Gateway Improper Certificate Validation Allows Man-in-the-Middle Attacks","updatedAt":1793805018771}