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 memory corruption vulnerabilities including heap buffer overflows and use-after-free bugs (CVE-2026-23530, CVE-2026-23531, CVE-2026-23532, CVE-2026-23533, CVE-2026-23534, CVE-2026-23883, CVE-2026-23884). These flaws can be triggered by a malicious RDP server during client connections, potentially causing denial of service or arbitrary code execution on the client system. The vulnerabilities affect the xfreerdp client and related FreeRDP components. Red Hat Enterprise Linux 9 and its CodeReady Linux Builder variants are impacted. Red Hat has issued an important security advisory (RHSA-2026:2048) with updated packages to remediate these issues.
Potential Impact
Successful exploitation of these vulnerabilities may allow a malicious RDP server to cause a denial of service or execute arbitrary code on the client system running FreeRDP. This could compromise the confidentiality, integrity, and availability of the affected system. The vulnerabilities affect client-side components, making users connecting to untrusted or compromised RDP servers at risk.
Mitigation Recommendations
Red Hat has released updated FreeRDP packages addressing these vulnerabilities as part of RHSA-2026:2048. Users of Red Hat Enterprise Linux 9 and related CodeReady Linux Builder variants should apply the security update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official patch. Patch status is confirmed as an official fix available from Red Hat.
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 memory corruption vulnerabilities including heap buffer overflows and use-after-free bugs (CVE-2026-23530, CVE-2026-23531, CVE-2026-23532, CVE-2026-23533, CVE-2026-23534, CVE-2026-23883, CVE-2026-23884). These flaws can be triggered by a malicious RDP server during client connections, potentially causing denial of service or arbitrary code execution on the client system. The vulnerabilities affect the xfreerdp client and related FreeRDP components. Red Hat Enterprise Linux 9 and its CodeReady Linux Builder variants are impacted. Red Hat has issued an important security advisory (RHSA-2026:2048) with updated packages to remediate these issues.
Potential Impact
Successful exploitation of these vulnerabilities may allow a malicious RDP server to cause a denial of service or execute arbitrary code on the client system running FreeRDP. This could compromise the confidentiality, integrity, and availability of the affected system. The vulnerabilities affect client-side components, making users connecting to untrusted or compromised RDP servers at risk.
Mitigation Recommendations
Red Hat has released updated FreeRDP packages addressing these vulnerabilities as part of RHSA-2026:2048. Users of Red Hat Enterprise Linux 9 and related CodeReady Linux Builder variants should apply the security update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official patch. Patch status is confirmed as an official fix available from Red Hat.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:2048
- 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: 6a27e99f8dd33fbd8516cc26
Added to database: 06/09/2026, 10:23:27 UTC
Last enriched: 06/25/2026, 23:41:03 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 92
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