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 leading to denial of service and potential code execution from a malicious server. (CVE-2026-23530) * freerdp: FreeRDP: Denial of Service and potential code execution via use-after-free vulnerability (CVE-2026-23884) * freerdp: FreeRDP: Arbitrary code execution and denial of service via malicious server (CVE-2026-23883) * freerdp: FreeRDP: Heap buffer overflow leads to denial of service and potential code execution (CVE-2026-23533) * freerdp: FreeRDP: Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution. (CVE-2026-23531) * freerdp: FreeRDP: Arbitrary code execution and denial of service via client-side heap buffer overflow (CVE-2026-23534) * freerdp: FreeRDP: Denial of Service and potential code execution via client-side heap buffer overflow (CVE-2026-23532) 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 several critical security flaws including heap buffer overflows (CVE-2026-23530, CVE-2026-23531, CVE-2026-23532, CVE-2026-23533, CVE-2026-23534) and use-after-free vulnerabilities (CVE-2026-23884) that can be triggered by a malicious RDP server. These vulnerabilities can cause denial of service and potentially allow arbitrary code execution on the client side. The vulnerabilities affect multiple Red Hat Enterprise Linux 9.4 Extended Update Support variants and related CodeReady Linux Builder products. Red Hat Product Security has issued an important security advisory (RHSA-2026:2736) with updated packages to remediate these issues.
Potential Impact
Exploitation of these vulnerabilities can result in denial of service conditions or arbitrary code execution on systems running vulnerable versions of FreeRDP. This could allow a malicious RDP server to compromise the client system. The vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related products, potentially impacting systems using FreeRDP to connect to RDP servers.
Mitigation Recommendations
Red Hat has released updated packages for FreeRDP as part of Red Hat Enterprise Linux 9.4 Extended Update Support to address these vulnerabilities. Users should apply the security updates provided by Red Hat as detailed in advisory RHSA-2026:2736. For update instructions and package details, refer to https://access.redhat.com/articles/11258. 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 leading to denial of service and potential code execution from a malicious server. (CVE-2026-23530) * freerdp: FreeRDP: Denial of Service and potential code execution via use-after-free vulnerability (CVE-2026-23884) * freerdp: FreeRDP: Arbitrary code execution and denial of service via malicious server (CVE-2026-23883) * freerdp: FreeRDP: Heap buffer overflow leads to denial of service and potential code execution (CVE-2026-23533) * freerdp: FreeRDP: Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution. (CVE-2026-23531) * freerdp: FreeRDP: Arbitrary code execution and denial of service via client-side heap buffer overflow (CVE-2026-23534) * freerdp: FreeRDP: Denial of Service and potential code execution via client-side heap buffer overflow (CVE-2026-23532) 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
FreeRDP contains several critical security flaws including heap buffer overflows (CVE-2026-23530, CVE-2026-23531, CVE-2026-23532, CVE-2026-23533, CVE-2026-23534) and use-after-free vulnerabilities (CVE-2026-23884) that can be triggered by a malicious RDP server. These vulnerabilities can cause denial of service and potentially allow arbitrary code execution on the client side. The vulnerabilities affect multiple Red Hat Enterprise Linux 9.4 Extended Update Support variants and related CodeReady Linux Builder products. Red Hat Product Security has issued an important security advisory (RHSA-2026:2736) with updated packages to remediate these issues.
Potential Impact
Exploitation of these vulnerabilities can result in denial of service conditions or arbitrary code execution on systems running vulnerable versions of FreeRDP. This could allow a malicious RDP server to compromise the client system. The vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related products, potentially impacting systems using FreeRDP to connect to RDP servers.
Mitigation Recommendations
Red Hat has released updated packages for FreeRDP as part of Red Hat Enterprise Linux 9.4 Extended Update Support to address these vulnerabilities. Users should apply the security updates provided by Red Hat as detailed in advisory RHSA-2026:2736. For update instructions and package details, refer to https://access.redhat.com/articles/11258. 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-2026:2736
- Cve Count
- 7
- Additional Cves
- ["CVE-2026-23531","CVE-2026-23532","CVE-2026-23533","CVE-2026-23534","CVE-2026-23883","CVE-2026-23884"]
Threat ID: 6a27e9938dd33fbd8516ab66
Added to database: 06/09/2026, 10:23:15 UTC
Last enriched: 06/25/2026, 23:23:23 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 65
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