{"id":"CVE-2026-121393","published":"2026-11-03T15:17:26.917","lastModified":"2026-11-03T21:12:22.357","description":"FreeRDP from 3.0.0 before 3.32.2 contains a denial of service vulnerability that allows malicious RDP servers to abort clients built with verbose WinPR assertions by sending crafted RemoteFX region rectangles. Attackers can supply a rectangle with x set to 65535 alongside a SurfaceBits destination left of 1, triggering a 16-bit coordinate assertion in rfx_process_message that terminates the client process.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-617"],"vendors":["freerdp"],"products":["freerdp"],"references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw","tags":["Vendor Advisory"]},{"url":"https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-remotefx-region-assertion","tags":["Third Party Advisory"]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw","tags":["Vendor Advisory"]}],"exploitRefs":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw","tags":["Vendor Advisory"]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qw2-8h66-pvpw","tags":["Vendor Advisory"]}],"hasPoc":true,"ai":null}