{"id":"CVE-2026-121950","published":"2026-11-04T16:17:47.153","lastModified":"2026-11-04T19:17:35.283","description":"FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A malicious RDP server can send a CREATE_SURFACE PDU with width and height 32766 to a connecting client to corrupt heap memory or cause a denial of service.","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-122"],"vendors":[],"products":[],"references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35","tags":[]},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-overflow-via-rdpgfx-create-surface-integer-wrap","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35","tags":[]}],"exploitRefs":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35","tags":[]}],"hasPoc":true,"ai":null}