{"id":"CVE-2026-33986","summary":"FreeRDP: H.264 YUV Buffer Dimension Desync - Heap OOB Write","details":"FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in yuv_ensure_buffer() in libfreerdp/codec/h264.c, h264-\u003ewidth and h264-\u003eheight are updated before the reallocation loop. If any winpr_aligned_recalloc() call fails, the function returns FALSE but width/height are already inflated. This issue has been patched in version 3.24.2.","aliases":["GHSA-h6qw-wxvm-hf97"],"modified":"2026-04-10T05:42:59.614537Z","published":"2026-03-30T21:43:21.951Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33986.json","cwe_ids":["CWE-122","CWE-131"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33986.json"},{"type":"FIX","url":"https://github.com/FreeRDP/FreeRDP/commit/f6e43e208958140074ae9bb93cd0c9045a371c77"},{"type":"ADVISORY","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h6qw-wxvm-hf97"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33986"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freerdp/freerdp","events":[{"introduced":"0"},{"fixed":"3028b706908f81767d9b9c744a90778c28f57d61"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"3.24.2"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33986.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}