{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-121638", "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "state": "PUBLISHED", "assignerShortName": "WatchGuard", "dateReserved": "2026-11-03T17:27:06.115Z", "datePublished": "2026-11-04T14:44:14.541Z", "dateUpdated": "2026-11-04T18:20:22.305Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "shortName": "WatchGuard", "dateUpdated": "2026-11-04T14:44:14.541Z" }, "title": "WatchGuard AuthPoint Gateway Improper Certificate Validation Allows Man-in-the-Middle Attacks", "descriptions": [ { "lang": "en", "value": "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." } ], "affected": [ { "vendor": "WatchGuard", "product": "AuthPoint Authentication Gateway", "versions": [ { "status": "affected", "version": "1.0", "versionType": "semver", "lessThan": "7.6.0" } ], "defaultStatus": "unaffected" } ], "references": [ { "url": "https://psirt.watchguard.com/CVE-2026-121638", "tags": [ "vendor-advisory" ] } ], "cpeApplicability": [ { "operator": "OR", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:watchguard:authpoint_authentication_gateway:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0", "versionEndExcluding": "7.6.0" } ] } ] } ], "metrics": [ { "cvssV4_0": { "version": "4.0", "vectorString": "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", "baseScore": 9.1, "baseSeverity": "CRITICAL" } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-295", "type": "CWE", "cweId": "CWE-295" } ] } ], "credits": [ { "lang": "en", "value": "WatchGuard AI Security Research", "type": "finder" } ], "configurations": [ { "lang": "en", "value": "This vulnerability affects AuthPoint Gateway deployments configured with a RADIUS, LDAP or ADFS resource.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
This vulnerability affects AuthPoint Gateway deployments configured with a RADIUS, LDAP or ADFS resource.
" } ] } ], "solutions": [ { "lang": "en", "value": "AuthPoint Authentication Gateway 7.6.0", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "AuthPoint Authentication Gateway 7.6.0" } ] } ], "exploits": [ { "lang": "en", "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild." } ] } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-121638", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-11-04T16:38:45.464042Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-04T18:20:22.305Z" } } ] } }