CVE-2026-33986 in FreeRDP
Summary
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->width and h264->height 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.
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Responsible
GitHub_M
Reservation
03/24/2026
Disclosure
03/31/2026
Status
Confirmed
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 354277 | FreeRDP h264.c yuv_ensure_buffer heap-based overflow | 122 | Not defined | Official fix | CVE-2026-33986 |