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: two heap-buffer-overflows (CVE-2026-22855 and CVE-2026-22859) and one global-buffer-overflow (CVE-2026-22858). These vulnerabilities could lead to memory corruption when using the xfreerdp client to connect to RDP servers. Red Hat Product Security has issued an advisory (RHSA-2026:4446) providing updated freerdp packages for Red Hat Enterprise Linux 8.6 variants to remediate these issues. No CVSS scores are provided in the advisory, but the severity is rated as Important. No known exploits in the wild have been reported at this time.
Potential Impact
The vulnerabilities involve heap and global buffer overflows in the FreeRDP client, which could potentially allow an attacker to cause memory corruption. This may lead to denial of service or other unintended behavior when connecting to RDP servers. The advisory does not specify exploitation details or confirmed impact beyond the buffer overflow classification. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated freerdp packages that fix these vulnerabilities for Red Hat Enterprise Linux 8.6 variants. Users should apply the security update as described in the Red Hat advisory RHSA-2026:4446 and the referenced article https://access.redhat.com/articles/11258. Applying the official update is the recommended remediation. No additional mitigations or workarounds are indicated in 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP 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 lead to memory corruption when using the xfreerdp client to connect to RDP servers. Red Hat Product Security has issued an advisory (RHSA-2026:4446) providing updated freerdp packages for Red Hat Enterprise Linux 8.6 variants to remediate these issues. No CVSS scores are provided in the advisory, but the severity is rated as Important. No known exploits in the wild have been reported at this time.
Potential Impact
The vulnerabilities involve heap and global buffer overflows in the FreeRDP client, which could potentially allow an attacker to cause memory corruption. This may lead to denial of service or other unintended behavior when connecting to RDP servers. The advisory does not specify exploitation details or confirmed impact beyond the buffer overflow classification. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated freerdp packages that fix these vulnerabilities for Red Hat Enterprise Linux 8.6 variants. Users should apply the security update as described in the Red Hat advisory RHSA-2026:4446 and the referenced article https://access.redhat.com/articles/11258. Applying the official update is the recommended remediation. No additional mitigations or workarounds are indicated in 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-2026:4446
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22858","CVE-2026-22859"]
- Cvss Version
- null
Threat ID: 6a27e9938dd33fbd8516a4fd
Added to database: 6/9/2026, 10:23:15 AM
Last enriched: 6/9/2026, 10:37:18 AM
Last updated: 6/10/2026, 4:59:59 AM
Views: 2
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