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Red Hat Security Advisory: freerdp security update

0
Medium
Published: Wed May 13 2026 (05/13/2026, 04:43:07 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

Multiple vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP) used by the xfreerdp client to connect to various RDP servers. These vulnerabilities include denial of service conditions caused by use-after-free, double free, endless blocking loops, and crafted audio data, as well as memory safety issues such as heap-buffer-overflow, out-of-bounds reads, and division-by-zero errors. Additionally, there is an information disclosure vulnerability via heap memory out-of-bounds read. These issues affect Red Hat Enterprise Linux 8. 8 and related update services. Red Hat has issued a security advisory with updated packages to address these vulnerabilities. The overall security impact is rated as moderate by Red Hat Product Security.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/26/2026, 22:49:48 UTC

Technical Analysis

FreeRDP, an open-source RDP client implementation, contains multiple security vulnerabilities including denial of service due to use-after-free (CVE-2026-25952), double free during disconnect (CVE-2026-26986), endless blocking loop (CVE-2026-27951), heap-buffer-overflow via out-of-bounds cacheId (CVE-2026-29775), out-of-bounds read in ADPCM decoders (CVE-2026-31885), division-by-zero in ADPCM decoders (CVE-2026-31884), denial of service via crafted audio data (CVE-2026-31883), and information disclosure through heap memory out-of-bounds read (CVE-2026-33985). These vulnerabilities affect Red Hat Enterprise Linux 8.8 and related update services. Red Hat has released updated packages to remediate these issues as detailed in advisory RHSA-2026:16777.

Potential Impact

The vulnerabilities collectively can lead to denial of service conditions, potentially causing the FreeRDP client to crash or hang, and information disclosure through out-of-bounds memory reads. These impacts could disrupt remote desktop sessions or leak sensitive memory contents. No known exploits in the wild have been reported. The security impact is assessed as moderate by Red Hat.

Mitigation Recommendations

Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 8.8 and related update services that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:16777 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. Patch status is confirmed as available via official Red Hat updates.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:16777
Cve Count
8
Additional Cves
["CVE-2026-26986","CVE-2026-27951","CVE-2026-29775","CVE-2026-31883","CVE-2026-31884","CVE-2026-31885","CVE-2026-33985"]
Cvss Version
null

Threat ID: 6a16097de29bf47b5064a2f6

Added to database: 5/26/2026, 8:58:37 PM

Last enriched: 5/26/2026, 10:49:48 PM

Last updated: 5/27/2026, 4:53:47 AM

Views: 2

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