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 heap-buffer-overflow (CVE-2026-22853) * freerdp: FreeRDP global-buffer-overflow (CVE-2026-22858) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22859) * freerdp: FreeRDP: Denial of Service via use after free in ecam_channel_write (CVE-2026-24678) 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
This advisory covers five security vulnerabilities in FreeRDP, including heap-buffer-overflows (CVE-2026-22853, CVE-2026-22855, CVE-2026-22859), a global-buffer-overflow (CVE-2026-22858), and a use-after-free leading to denial of service (CVE-2026-24678). These issues affect the xfreerdp client used to connect to RDP servers. The vulnerabilities were identified and fixed in the freerdp packages distributed with Red Hat Enterprise Linux 10.0 Extended Update Support and associated CodeReady Linux Builder products. Red Hat has issued updated packages to remediate these vulnerabilities.
Potential Impact
Successful exploitation of these vulnerabilities could lead to memory corruption such as buffer overflows or use-after-free conditions within the FreeRDP client. This could potentially allow an attacker to cause a denial of service or other unintended behavior when connecting to a malicious or compromised RDP server. The advisory rates the security impact as important (high severity). No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:4121 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official update.
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 heap-buffer-overflow (CVE-2026-22853) * freerdp: FreeRDP global-buffer-overflow (CVE-2026-22858) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22859) * freerdp: FreeRDP: Denial of Service via use after free in ecam_channel_write (CVE-2026-24678) 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
This advisory covers five security vulnerabilities in FreeRDP, including heap-buffer-overflows (CVE-2026-22853, CVE-2026-22855, CVE-2026-22859), a global-buffer-overflow (CVE-2026-22858), and a use-after-free leading to denial of service (CVE-2026-24678). These issues affect the xfreerdp client used to connect to RDP servers. The vulnerabilities were identified and fixed in the freerdp packages distributed with Red Hat Enterprise Linux 10.0 Extended Update Support and associated CodeReady Linux Builder products. Red Hat has issued updated packages to remediate these vulnerabilities.
Potential Impact
Successful exploitation of these vulnerabilities could lead to memory corruption such as buffer overflows or use-after-free conditions within the FreeRDP client. This could potentially allow an attacker to cause a denial of service or other unintended behavior when connecting to a malicious or compromised RDP server. The advisory rates the security impact as important (high severity). No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:4121 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4121
- Cve Count
- 5
- Additional Cves
- ["CVE-2026-22855","CVE-2026-22858","CVE-2026-22859","CVE-2026-24678"]
- Cvss Version
- null
Threat ID: 6a27e9938dd33fbd8516a51a
Added to database: 06/09/2026, 10:23:15 UTC
Last enriched: 06/25/2026, 23:16:34 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 109
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