CVE-2026-33986
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFreerdp
PublishedMar 30, 2026
First seenMar 30, 2026
Weakness typeCWE-122CWE-122CWE-131CWE-131
How to fix
Update
- freerdp freerdp3.24.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freerdp freerdp | v < 3.24.2 | 3.24.2 |
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