{"id":"CVE-2026-121394","title":"FreeRDP before 3.32.2 Denial of Service via RemoteFX RLGR decoder","summary":"FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, trigge…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-617"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 3.11.0 < 3.32.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-07T02:49:08.829335Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-07","sourceUpdated":"2026-11-07T02:49:37.560Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121394","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5j39-x36c-x9pm","label":"GitHub Security Advisory (GHSA-5j39-x36c-x9pm)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-remotefx-rlgr-decoder","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via RemoteFX RLGR decoder"}],"tags":["cve.org","exploit-available"],"epss":0.00254,"epssPercentile":0.17035,"ingestedAt":"2026-11-05T19:30:42.961Z","slug":"CVE-2026-121394","body":"## Overview\n\nFreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, triggering a signed narrowing assertion in rfx_rlgr_decode and crashing the client.\n\n## Affected\n\n- `FreeRDP >= 3.11.0 < 3.32.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":235733,"id":"CVE-2026-121394","ts":1794020953581,"field":"exploit_available","old":"false","new":"true"}]}