{"id":"CVE-2026-121407","title":"FreeRDP before 3.32.2 Shadow Server Denial of Service via remdesk Channel","summary":"FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdes…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-20"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T14:28:08.104Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121407","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x8vp-ff7m-294g","label":"GitHub Security Advisory (GHSA-x8vp-ff7m-294g)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-shadow-server-denial-of-service-via-remdesk-channel","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Shadow Server Denial of Service via remdesk Channel"}],"tags":["cve.org"],"epss":0.00314,"epssPercentile":0.24461,"ingestedAt":"2026-11-05T19:30:42.963Z","slug":"CVE-2026-121407","body":"## Overview\n\nFreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal Stream_Seek assertion, aborting the server and dropping sessions.\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":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}