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OpenAdvisories
Medium · 5.9 CVE-2026-33985 EUVD-2026-17231

FreeRDP: ClearCodec Glyph Cache Count Desync - Heap OOB Read

Published Mar 30, 2026 · Updated Mar 31, 2026 · Assigned by GitHub_M

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, pixel data from adjacent heap memory is rendered to screen, potentially leaking sensitive data to the attacker. This issue has been patched in version 3.24.2.

Affected products

VendorProductAffectedFixed
FreeRDP FreeRDP < 3.24.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 freerdp3 3.24.2+dfsg-1 —
Debian 13 freerdp3 3.15.0+dfsg-2.1+deb13u2 —
Debian 12 freerdp2 No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS freerdp3 3.30.0+dfsg-0ubuntu0.26.04.1 USN-8561-1
Ubuntu 25.10 freerdp3 No fix yet —
Ubuntu 24.04 LTS freerdp3 3.30.0+dfsg-0ubuntu0.24.04.1 USN-8561-1
Ubuntu 22.04 LTS freerdp2 No fix yet —
Ubuntu 18.04 LTS freerdp No fix yet —
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS freerdp No fix yet —
Ubuntu Pro 24.04 LTS freerdp2 No fix yet —
Ubuntu Pro 20.04 LTS freerdp2 No fix yet —
Ubuntu Pro 18.04 LTS freerdp2 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 10 freerdp +5 2:3.10.3-5.el10_1.8 RHSA-2026:19142, RHSA-2026:16014
RHEL 9 freerdp +4 2:2.11.7-1.el9_7.7 RHSA-2026:19358, RHSA-2026:16482
RHEL 8 freerdp +4 2:2.11.7-9.el8_10 RHSA-2026:16019
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS freerdp +5 2:3.10.3-3.el10_0.7 RHSA-2026:20605
RHEL 9.6 EUS freerdp +4 2:2.11.7-1.el9_6.10 RHSA-2026:16865
RHEL 9.4 EUS freerdp +4 2:2.11.2-1.el9_4.8 RHSA-2026:16866
RHEL 9.2 E4S freerdp +2 2:2.4.1-6.el9_2.9 RHSA-2026:16483
RHEL 9.0 E4S freerdp +2 2:2.4.1-3.el9_0.7 RHSA-2026:16485
RHEL 8.8 TUS freerdp +3 2:2.2.0-12.el8_8.8 RHSA-2026:16777
RHEL 8.8 E4S freerdp +3 2:2.2.0-12.el8_8.8 RHSA-2026:16777
RHEL 8.6 TUS freerdp +3 2:2.2.0-7.el8_6.8 RHSA-2026:16814
RHEL 8.6 E4S freerdp +3 2:2.2.0-7.el8_6.8 RHSA-2026:16814
RHEL 8.6 AUS freerdp +3 2:2.2.0-7.el8_6.8 RHSA-2026:16814
RHEL 8.4 EUS Long Life freerdp +3 2:2.2.0-14.el8_4 RHSA-2026:19811
RHEL 8.4 AUS freerdp +3 2:2.2.0-14.el8_4 RHSA-2026:19811
RHEL 7 ELS freerdp +4 2.1.1-5.el7_9.9 RHSA-2026:20546

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 freerdp +5 2:3.10.3-5.el10_1.8 ALSA-2026:16014
AlmaLinux 9 freerdp +4 2:2.11.7-1.el9_7.7 ALSA-2026:19358, ALSA-2026:16482
AlmaLinux 8 freerdp +4 2:2.11.7-9.el8_10 ALSA-2026:16019

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 freerdp 2:3.10.3-5.el10_1.8 RLSA-2026:19142, RLSA-2026:16014
Rocky Linux 9 freerdp 2:2.11.7-1.el9_7.7 RLSA-2026:19358, RLSA-2026:16482
Rocky Linux 8 freerdp 2:2.11.7-9.el8_10 RLSA-2026:16019
ReleasePackageFixed inAdvisory
SLES 15 SP7 freerdp 3.10.3-150700.3.17.1 SUSE-SU-2026:3562-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 freerdp 3.26.0-160000.1.1 SUSE-SU-2026:22194-1
SLES 16.0 freerdp 3.26.0-160000.1.1 SUSE-SU-2026:22194-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed freerdp 3.24.2-1.1 openSUSE-SU-2026:10633-1
openSUSE Leap 16.0 freerdp 3.26.0-160000.1.1 openSUSE-SU-2026:21116-1
ReleasePackageFixed inAdvisory
Alpine v3.24 freerdp 3.24.2-r0 —
Alpine v3.23 freerdp 3.24.2-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 freerdp +5 2:3.6.3-1.amzn2023.0.10 ALAS2023-2026-1549
Amazon Linux 2 freerdp +4 2:2.11.7-1.amzn2.0.10 ALAS2-2026-3238

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 freerdp +5 2:3.10.3-5.el10_1.8 ELSA-2026-19142, ELSA-2026-16014
Oracle Linux 9 freerdp +4 2:2.11.7-1.el9_7.7 ELSA-2026-19358, ELSA-2026-16482
Oracle Linux 8 freerdp +4 2:2.11.7-9.el8_10 ELSA-2026-16019
Oracle Linux 7 freerdp +4 2.1.1-5.0.9.el7_9 ELSA-2026-20546

Advisories 37

References