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 allows arbitrary code execution via crafted pixel data (CVE-2026-33984) * FreeRDP: FreeRDP: Denial of Service via specially crafted Remote Desktop Protocol messages (CVE-2026-33983) 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 two vulnerabilities: a heap buffer overflow (CVE-2026-33984) that enables arbitrary code execution when processing crafted pixel data, and a denial of service vulnerability (CVE-2026-33983) caused by specially crafted Remote Desktop Protocol messages. These vulnerabilities affect the xfreerdp client used to connect to RDP servers. Red Hat Enterprise Linux 8 and associated CodeReady Linux Builder products are impacted. Red Hat has issued security advisories and updates to fix these issues, specifically in freerdp version 2.11.7-7.el8_10 and related packages.
Potential Impact
The heap buffer overflow vulnerability (CVE-2026-33984) could allow an attacker to execute arbitrary code on the client system by sending crafted pixel data. The denial of service vulnerability (CVE-2026-33983) could cause the xfreerdp client to crash or become unresponsive when processing malicious RDP messages. Both vulnerabilities pose significant risks to systems using affected versions of FreeRDP, potentially leading to system compromise or service disruption.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 8 and related products to address these vulnerabilities. Users should apply the provided updates (freerdp-2.11.7-7.el8_10 and associated packages) as detailed in the Red Hat advisory RHSA-2026:8945 and the update instructions at https://access.redhat.com/articles/11258. Applying these official patches mitigates the vulnerabilities. No additional vendor-recommended mitigations are indicated.
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 allows arbitrary code execution via crafted pixel data (CVE-2026-33984) * FreeRDP: FreeRDP: Denial of Service via specially crafted Remote Desktop Protocol messages (CVE-2026-33983) 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 two vulnerabilities: a heap buffer overflow (CVE-2026-33984) that enables arbitrary code execution when processing crafted pixel data, and a denial of service vulnerability (CVE-2026-33983) caused by specially crafted Remote Desktop Protocol messages. These vulnerabilities affect the xfreerdp client used to connect to RDP servers. Red Hat Enterprise Linux 8 and associated CodeReady Linux Builder products are impacted. Red Hat has issued security advisories and updates to fix these issues, specifically in freerdp version 2.11.7-7.el8_10 and related packages.
Potential Impact
The heap buffer overflow vulnerability (CVE-2026-33984) could allow an attacker to execute arbitrary code on the client system by sending crafted pixel data. The denial of service vulnerability (CVE-2026-33983) could cause the xfreerdp client to crash or become unresponsive when processing malicious RDP messages. Both vulnerabilities pose significant risks to systems using affected versions of FreeRDP, potentially leading to system compromise or service disruption.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 8 and related products to address these vulnerabilities. Users should apply the provided updates (freerdp-2.11.7-7.el8_10 and associated packages) as detailed in the Red Hat advisory RHSA-2026:8945 and the update instructions at https://access.redhat.com/articles/11258. Applying these official patches mitigates the vulnerabilities. No additional vendor-recommended mitigations are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:8945
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-33984"]
- Cvss Version
- null
Threat ID: 6a3da1bd4853345fc181aeb7
Added to database: 06/25/2026, 21:46:37 UTC
Last enriched: 06/25/2026, 21:49:01 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 15
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