CVE-2026-33986

EUVD-2026-17233
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
Affected Products (NVD)
VendorProductVersion
freerdpfreerdp
𝑥
< 3.24.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
no-dsa
bullseye
vulnerable
bullseye (security)
vulnerable
freerdp3
forky
3.27.0+dfsg-1
fixed
sid
3.27.0+dfsg-1
fixed
trixie
3.15.0+dfsg-2.1+deb13u3
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
freerdp
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-debuginfo
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-debugsource
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-devel
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-libs
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-libs-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-server
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
freerdp-server-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
libwinpr
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
libwinpr-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
libwinpr-devel
Amazon Linux 2
2:2.11.7-1.amzn2.0.10
fixed
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.10
fixed
Common Weakness Enumeration
References
https://github.com/FreeRDP/FreeRDP/commit/f6e43e208958140074ae9bb93cd0c9045a371c77
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h6qw-wxvm-hf97