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
3.24.2+dfsg-1
fixed
sid
3.26.0+dfsg-1
fixed
trixie
no-dsa
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
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/FreeRDP/FreeRDP/commit/78188ab479c8e6eb9ba2475b3732c76b4bbe5425
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gfm-4p52-h478