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
FreeRDP contains multiple buffer overflow vulnerabilities, including heap-buffer-overflow (CVE-2026-22855 and CVE-2026-22859) and a global-buffer-overflow (CVE-2026-22858). These flaws could potentially lead to memory corruption when using the xfreerdp client to connect to RDP servers. Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 9.4 Extended Update Support and associated variants to fix these issues. The advisory references specific bugzilla entries and provides updated package versions for remediation.
Potential Impact
Successful exploitation of these heap and global buffer overflow vulnerabilities could result in memory corruption, which may lead to application crashes or potentially arbitrary code execution within the context of the vulnerable client. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.4 Extended Update Support and related products should apply the security update as described in the Red Hat advisory RHSA-2026:4438 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. No additional vendor-recommended mitigations or workarounds are indicated.
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains multiple buffer overflow vulnerabilities, including heap-buffer-overflow (CVE-2026-22855 and CVE-2026-22859) and a global-buffer-overflow (CVE-2026-22858). These flaws could potentially lead to memory corruption when using the xfreerdp client to connect to RDP servers. Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 9.4 Extended Update Support and associated variants to fix these issues. The advisory references specific bugzilla entries and provides updated package versions for remediation.
Potential Impact
Successful exploitation of these heap and global buffer overflow vulnerabilities could result in memory corruption, which may lead to application crashes or potentially arbitrary code execution within the context of the vulnerable client. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.4 Extended Update Support and related products should apply the security update as described in the Red Hat advisory RHSA-2026:4438 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. No additional vendor-recommended mitigations or workarounds are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4438
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22858","CVE-2026-22859"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd8516a1db
Added to database: 6/9/2026, 10:23:14 AM
Last enriched: 6/9/2026, 10:35:53 AM
Last updated: 6/10/2026, 7:01:44 AM
Views: 5
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