CVE-2026-24677
Critical
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. This vulnerability is fixed in 3.22.0.
SeverityCritical
CVSS9.1
Exploit probability—
ProductFreerdp
PublishedFeb 9, 2026
First seenFeb 9, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- freerdp freerdp3.22.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freerdp freerdp | v < 3.22.0 | 3.22.0 |
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