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, an open-source RDP client used in Red Hat Enterprise Linux 8.4, contains multiple buffer overflow vulnerabilities: two heap-buffer-overflows (CVE-2026-22855 and CVE-2026-22859) and one global-buffer-overflow (CVE-2026-22858). These vulnerabilities could allow memory corruption when processing RDP data. Red Hat Product Security has released updated freerdp packages (version 2.2.0-8.el8_4) for Extended Update Support and Advanced Update Support variants of Red Hat Enterprise Linux 8.4 to remediate these issues. The advisory rates the security impact as Important (high severity).
Potential Impact
The vulnerabilities involve heap and global buffer overflows in FreeRDP, which may lead to memory corruption. Such memory corruption could potentially be exploited to cause application crashes or execute arbitrary code, depending on the context. The advisory does not report known exploits in the wild. The impact is rated as Important by Red Hat, indicating a high severity level.
Mitigation Recommendations
Red Hat has released updated freerdp packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 Extended Update Support and Advanced Update Support should apply the provided security updates (freerdp-2.2.0-8.el8_4) as detailed in the Red Hat advisory RHSA-2026:4439. No additional mitigation steps are indicated beyond applying the official patches.
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, an open-source RDP client used in Red Hat Enterprise Linux 8.4, contains multiple buffer overflow vulnerabilities: two heap-buffer-overflows (CVE-2026-22855 and CVE-2026-22859) and one global-buffer-overflow (CVE-2026-22858). These vulnerabilities could allow memory corruption when processing RDP data. Red Hat Product Security has released updated freerdp packages (version 2.2.0-8.el8_4) for Extended Update Support and Advanced Update Support variants of Red Hat Enterprise Linux 8.4 to remediate these issues. The advisory rates the security impact as Important (high severity).
Potential Impact
The vulnerabilities involve heap and global buffer overflows in FreeRDP, which may lead to memory corruption. Such memory corruption could potentially be exploited to cause application crashes or execute arbitrary code, depending on the context. The advisory does not report known exploits in the wild. The impact is rated as Important by Red Hat, indicating a high severity level.
Mitigation Recommendations
Red Hat has released updated freerdp packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 Extended Update Support and Advanced Update Support should apply the provided security updates (freerdp-2.2.0-8.el8_4) as detailed in the Red Hat advisory RHSA-2026:4439. No additional mitigation steps are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4439
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22858","CVE-2026-22859"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd8516a215
Added to database: 6/9/2026, 10:23:14 AM
Last enriched: 6/9/2026, 10:37:00 AM
Last updated: 6/10/2026, 5:00:31 AM
Views: 2
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