{"id":"CVE-2026-121953","title":"FreeRDP before 3.32.2 Use-After-Free via rdpgfx Dynamic Virtual Channel Close","summary":"FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A mali…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-416"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-11-04T18:37:48.291764Z"},"exploitAvailable":true,"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T18:38:57.583Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121953","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6wqx-rv3q-vcxp","label":"GitHub Security Advisory (GHSA-6wqx-rv3q-vcxp)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-rdpgfx-dynamic-virtual-channel-close","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Use-After-Free via rdpgfx Dynamic Virtual Channel Close"}],"tags":["cve.org","exploit-available"],"ingestedAt":"2026-11-05T21:36:00.492Z","slug":"CVE-2026-121953","body":"## Overview\n\nFreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.\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":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}