CVE-2026-24677

FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264

State: Published
Severity: 8.7 High
Published: Feb 9, 2026
Updated: Feb 10, 2026
Reserved: Jan 23, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
FreeRDPFreeRDP	< 3.22.0Affected

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xw37-j744-f8v7
https://github.com/FreeRDP/FreeRDP/commit/d2d4f449312ddafd4a4c6c8a4f856c7f0d44a3b5

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