Red Hat Security Advisory: freerdp security update
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 heap-buffer-overflow (CVE-2026-22855) * freerdp: FreeRDP global-buffer-overflow (CVE-2026-22858) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22859) 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.
AI Analysis
Technical Summary
The Red Hat security advisory RHSA-2026:3334 addresses three security vulnerabilities in FreeRDP, specifically heap-buffer-overflow (CVE-2026-22855 and CVE-2026-22859) and global-buffer-overflow (CVE-2026-22858) flaws. FreeRDP is used by the xfreerdp client to connect to RDP servers such as Microsoft Windows, xrdp, and VirtualBox. These buffer overflow vulnerabilities could allow an attacker to cause memory corruption. The advisory covers Red Hat Enterprise Linux 8 and related CodeReady Linux Builder and Extended Life Cycle variants on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has released updated freerdp packages (version 2.11.7-3.el8_10) that fix these vulnerabilities. The advisory does not provide CVSS scores or evidence of exploitation in the wild.
Potential Impact
Successful exploitation of these heap and global buffer overflow vulnerabilities in FreeRDP could lead to memory corruption, which may result in application crashes or potentially allow arbitrary code execution depending on the context. The vulnerabilities affect the freerdp client used in Red Hat Enterprise Linux 8 and related distributions. No known exploits in the wild have been reported at this time. The overall security impact is rated as Important by Red Hat.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 8 and related distributions should apply the security update RHSA-2026:3334 promptly to remediate these issues. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: freerdp security update
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 heap-buffer-overflow (CVE-2026-22855) * freerdp: FreeRDP global-buffer-overflow (CVE-2026-22858) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22859) 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
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat security advisory RHSA-2026:3334 addresses three security vulnerabilities in FreeRDP, specifically heap-buffer-overflow (CVE-2026-22855 and CVE-2026-22859) and global-buffer-overflow (CVE-2026-22858) flaws. FreeRDP is used by the xfreerdp client to connect to RDP servers such as Microsoft Windows, xrdp, and VirtualBox. These buffer overflow vulnerabilities could allow an attacker to cause memory corruption. The advisory covers Red Hat Enterprise Linux 8 and related CodeReady Linux Builder and Extended Life Cycle variants on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has released updated freerdp packages (version 2.11.7-3.el8_10) that fix these vulnerabilities. The advisory does not provide CVSS scores or evidence of exploitation in the wild.
Potential Impact
Successful exploitation of these heap and global buffer overflow vulnerabilities in FreeRDP could lead to memory corruption, which may result in application crashes or potentially allow arbitrary code execution depending on the context. The vulnerabilities affect the freerdp client used in Red Hat Enterprise Linux 8 and related distributions. No known exploits in the wild have been reported at this time. The overall security impact is rated as Important by Red Hat.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 8 and related distributions should apply the security update RHSA-2026:3334 promptly to remediate these issues. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3334
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22858","CVE-2026-22859"]
- Cvss Version
- null
Threat ID: 6a27e9938dd33fbd8516a7e6
Added to database: 06/09/2026, 10:23:15 UTC
Last enriched: 06/25/2026, 23:19:15 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 52
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