RHSA-2026:19142 - Security Advisory

Topic

An update for freerdp is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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 via heap use-after-free during auto-reconnect (CVE-2026-25997)
• 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 has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId (CVE-2026-29775)
• freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index 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)
• FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read (CVE-2026-33982)
• FreeRDP: FreeRDP: Memory corruption vulnerability allows denial of service or arbitrary code execution (CVE-2026-33987)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64
• Red Hat CodeReady Linux Builder for x86_64 10 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.2 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.2 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.2 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.2 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x
• Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le
• Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x

Fixes

• BZ - 2442764 - CVE-2026-25997 freerdp: FreeRDP: Denial of service via heap use-after-free during auto-reconnect
• BZ - 2442768 - CVE-2026-25952 freerdp: FreeRDP: Denial of service due to use-after-free vulnerability
• BZ - 2442782 - CVE-2026-26986 freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect
• BZ - 2447379 - CVE-2026-29775 freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId
• BZ - 2447383 - CVE-2026-31885 freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks
• BZ - 2447385 - CVE-2026-31884 freerdp: FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0
• BZ - 2447386 - CVE-2026-31883 freerdp: FreeRDP: Denial of Service via crafted audio data in RDP
• BZ - 2453217 - CVE-2026-33985 FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read
• BZ - 2453218 - CVE-2026-33982 FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read
• BZ - 2453226 - CVE-2026-33987 FreeRDP: FreeRDP: Memory corruption vulnerability allows denial of service or arbitrary code execution

CVEs

• CVE-2026-25952
• CVE-2026-25997
• CVE-2026-26986
• CVE-2026-29775
• CVE-2026-31883
• CVE-2026-31884
• CVE-2026-31885
• CVE-2026-33982
• CVE-2026-33985
• CVE-2026-33987

References

• https://access.redhat.com/security/updates/classification/#moderate