{"id":"CVE-2026-121401","title":"FreeRDP before 3.32.2 Denial of Service via RD Gateway extended-auth packet","summary":"FreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying negotiated mode or auth context. A malicious or compromised RD Gateway can send the exten…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-476"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T16:07:55.379361Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T16:08:18.318Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121401","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rjm-m7xg-mg6m","label":"GitHub Security Advisory (GHSA-8rjm-m7xg-mg6m)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-rd-gateway-extended-auth-packet","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via RD Gateway extended-auth packet"}],"tags":["cve.org","exploit-available"],"epss":0.00317,"epssPercentile":0.24736,"ingestedAt":"2026-11-05T20:33:06.279Z","slug":"CVE-2026-121401","body":"## Overview\n\nFreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying negotiated mode or auth context. A malicious or compromised RD Gateway can send the extended-auth packet before tunnel authentication, triggering a null-pointer dereference that crashes the client.\n\n## Affected\n\n- `FreeRDP < 3.32.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}