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
FreeRDP contains multiple memory corruption vulnerabilities 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) in the ecam_channel_write function. These issues could potentially be exploited to cause crashes or other unintended behavior in the xfreerdp client. Red Hat has issued an Important security advisory (RHSA-2026:4121) providing updated packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants to remediate these vulnerabilities.
Potential Impact
The vulnerabilities allow for heap and global buffer overflows and a use-after-free condition, which can lead to denial of service or potentially other impacts depending on exploitation. The advisory rates the security impact as Important, indicating a high severity but does not provide a CVSS score. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related products that fix 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 by the vendor, and the update should be applied promptly to remediate the issues.
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains multiple memory corruption vulnerabilities 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) in the ecam_channel_write function. These issues could potentially be exploited to cause crashes or other unintended behavior in the xfreerdp client. Red Hat has issued an Important security advisory (RHSA-2026:4121) providing updated packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants to remediate these vulnerabilities.
Potential Impact
The vulnerabilities allow for heap and global buffer overflows and a use-after-free condition, which can lead to denial of service or potentially other impacts depending on exploitation. The advisory rates the security impact as Important, indicating a high severity but does not provide a CVSS score. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated freerdp packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related products that fix 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 by the vendor, and the update should be applied promptly to remediate the issues.
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: 6/9/2026, 10:23:15 AM
Last enriched: 6/9/2026, 10:37:51 AM
Last updated: 6/10/2026, 4:59:57 AM
Views: 2
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