CVE-2026-24677

EUVD-2026-6483
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
freerdpfreerdp
𝑥
< 3.22.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
no-dsa
bullseye
vulnerable
bullseye (security)
vulnerable
trixie
no-dsa
freerdp3
bookworm
no-dsa
forky
3.22.0+dfsg-3
fixed
sid
3.22.0+dfsg-3
fixed
trixie
no-dsa
Common Weakness Enumeration
References
https://github.com/FreeRDP/FreeRDP/commit/d2d4f449312ddafd4a4c6c8a4f856c7f0d44a3b5
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xw37-j744-f8v7