RHSA-2026:19811: Moderate: freerdp security update

Published May 20, 2026
·
Updated

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.Security Fix(es): freerdp: FreeRDP: Denial of service due to use-after-free vulnerability (CVE-2026-25952) freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect (CVE-2026-26986) freerdp: FreeRDP: Denial of Service via endless blocking loop in StreamEnsureCapacity (CVE-2026-27951) freerdp: FreeRDP has a heap-buffer-overflow in bitmapcacheput via OOB cacheId (CVE-2026-29775) freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/stepindex bounds checks (CVE-2026-31885) freerdp: FreeRDP has a division-by-zero in ADPCM decoders when nBlockAlign is 0 (CVE-2026-31884) freerdp: FreeRDP: Denial of Service via crafted audio data in RDP (CVE-2026-31883) FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read (CVE-2026-33985) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

18 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension
Red Hat Red Hat Enterprise Linux Server - AUS
redhat/freerdp<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-debugsource<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-debugsource<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-libs<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-libs<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-libs-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/freerdp-libs-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr-debuginfo<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr-devel<2.2.0-14.el8_4
2.2.0-14.el8_4
redhat/libwinpr-devel<2.2.0-14.el8_4
2.2.0-14.el8_4

Remediation

Event History

May 20, 2026
Advisory Published
via Red Hat·07:28 PM
Data Sourced
via Red Hat·07:28 PM
DescriptionSeverityAffected Software
May 24, 2026
Advisory Published
via Red Hat·08:40 PM
Data Sourced
via Red Hat·08:40 PM
Remedy

Frequently Asked Questions

1

What is the severity of RHSA-2026:19811?

The severity of RHSA-2026:19811 is rated as medium with a score of 4.

2

What vulnerabilities does RHSA-2026:19811 address?

RHSA-2026:19811 addresses a denial of service vulnerability due to a use-after-free issue in FreeRDP.

3

How do I fix RHSA-2026:19811?

To fix RHSA-2026:19811, apply the available security update for FreeRDP as provided in the advisory.

4

What software is affected by RHSA-2026:19811?

RHSA-2026:19811 affects multiple packages including freerdp, freerdp-debuginfo, and libwinpr among others.

5

What is FreeRDP in the context of RHSA-2026:19811?

FreeRDP is an open-source implementation of the Remote Desktop Protocol that allows connections to RDP servers.

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