CVE-2026-33983

EUVD-2026-17227
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressive_decompress_tile_upgrade() detects a mismatch via progressive_rfx_quant_cmp_equal() but only emits WLog_WARN, execution continues. The wrapped value (247) is used as a shift exponent, causing undefined behavior and an approximately 80 billion iteration loop (CPU DoS). This issue has been patched in version 3.24.2.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 16%
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
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
freerdp
RHEL 8
2:2.11.7-7.el8_10
fixed
RHEL 8.2 AUS
2:2.0.0-46.rc4.el8_2.11
fixed
RHEL 8.4 AUS
2:2.2.0-13.el8_4
fixed
RHEL 8.6 AUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 E4S
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 TUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.8 E4S
2:2.2.0-12.el8_8.6
fixed
RHEL 8.8 TUS
2:2.2.0-12.el8_8.6
fixed
RHEL 9
2:2.11.7-1.el9_7.6
fixed
freerdp-devel
RHEL 8
2:2.11.7-7.el8_10
fixed
RHEL 9
2:2.11.7-1.el9_7.6
fixed
freerdp-libs
RHEL 8
2:2.11.7-7.el8_10
fixed
RHEL 8.2 AUS
2:2.0.0-46.rc4.el8_2.11
fixed
RHEL 8.4 AUS
2:2.2.0-13.el8_4
fixed
RHEL 8.6 AUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 E4S
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 TUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.8 E4S
2:2.2.0-12.el8_8.6
fixed
RHEL 8.8 TUS
2:2.2.0-12.el8_8.6
fixed
RHEL 9
2:2.11.7-1.el9_7.6
fixed
libwinpr
RHEL 8
2:2.11.7-7.el8_10
fixed
RHEL 8.2 AUS
2:2.0.0-46.rc4.el8_2.11
fixed
RHEL 8.4 AUS
2:2.2.0-13.el8_4
fixed
RHEL 8.6 AUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 E4S
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 TUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.8 E4S
2:2.2.0-12.el8_8.6
fixed
RHEL 8.8 TUS
2:2.2.0-12.el8_8.6
fixed
RHEL 9
2:2.11.7-1.el9_7.6
fixed
libwinpr-devel
RHEL 8
2:2.11.7-7.el8_10
fixed
RHEL 8.2 AUS
2:2.0.0-46.rc4.el8_2.11
fixed
RHEL 8.4 AUS
2:2.2.0-13.el8_4
fixed
RHEL 8.6 AUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 E4S
2:2.2.0-7.el8_6.6
fixed
RHEL 8.6 TUS
2:2.2.0-7.el8_6.6
fixed
RHEL 8.8 E4S
2:2.2.0-12.el8_8.6
fixed
RHEL 8.8 TUS
2:2.2.0-12.el8_8.6
fixed
RHEL 9
2:2.11.7-1.el9_7.6
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/78188ab479c8e6eb9ba2475b3732c76b4bbe5425
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478