{"id":"CVE-2026-121390","title":"FreeRDP before 3.32.2 Null Pointer Crash via ARM Gateway Response","summary":"FreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains a reachable assertion because its ARM gateway response parser accepts a missing or non-string redirectedServerCert field and passes a null buffer to the certificate parser. A ma…","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-617"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 3.0.0 < 3.32.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-07T02:48:14.308469Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-07","sourceUpdated":"2026-11-07T02:48:36.652Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121390","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hqf8-95c7-6r92","label":"GitHub Security Advisory (GHSA-hqf8-95c7-6r92)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-null-pointer-crash-via-arm-gateway-response","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Null Pointer Crash via ARM Gateway Response"}],"tags":["cve.org","exploit-available"],"epss":0.00154,"epssPercentile":0.04599,"ingestedAt":"2026-11-05T19:30:42.960Z","slug":"CVE-2026-121390","body":"## Overview\n\nFreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains a reachable assertion because its ARM gateway response parser accepts a missing or non-string redirectedServerCert field and passes a null buffer to the certificate parser. A malicious or malformed user-selected gateway can return such a response to abort the client process.\n\n## Affected\n\n- `FreeRDP >= 3.0.0 < 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,"exploitation":12,"ransomware":0},"changes":[{"seq":235734,"id":"CVE-2026-121390","ts":1794020953633,"field":"exploit_available","old":"false","new":"true"}]}