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 permits arbitrary code execution through 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 has released updated packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related distributions to remediate these issues. The advisory references Red Hat Bugzilla entries 2453219 and 2453220 for the respective CVEs and provides updated freerdp packages version 2.11.7-1.el9_6.8.
Potential Impact
Successful exploitation of CVE-2026-33984 could allow an attacker to execute arbitrary code on the affected system via crafted pixel data, posing a critical risk to system integrity. CVE-2026-33983 could cause denial of service by crashing the freerdp client when processing malicious RDP messages, impacting availability. These vulnerabilities affect systems running vulnerable versions of FreeRDP on Red Hat Enterprise Linux 9.6 Extended Update Support and related variants.
Mitigation Recommendations
Red Hat has released updated freerdp packages (version 2.11.7-1.el9_6.8) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.6 Extended Update Support and related variants should apply these official updates promptly. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations are specified by the vendor advisory.
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
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains two vulnerabilities: a heap buffer overflow (CVE-2026-33984) that permits arbitrary code execution through 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 has released updated packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related distributions to remediate these issues. The advisory references Red Hat Bugzilla entries 2453219 and 2453220 for the respective CVEs and provides updated freerdp packages version 2.11.7-1.el9_6.8.
Potential Impact
Successful exploitation of CVE-2026-33984 could allow an attacker to execute arbitrary code on the affected system via crafted pixel data, posing a critical risk to system integrity. CVE-2026-33983 could cause denial of service by crashing the freerdp client when processing malicious RDP messages, impacting availability. These vulnerabilities affect systems running vulnerable versions of FreeRDP on Red Hat Enterprise Linux 9.6 Extended Update Support and related variants.
Mitigation Recommendations
Red Hat has released updated freerdp packages (version 2.11.7-1.el9_6.8) that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.6 Extended Update Support and related variants should apply these official updates promptly. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations are specified by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:9656
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-33984"]
- Cvss Version
- null
Threat ID: 6a3da1bd4853345fc181aeb0
Added to database: 06/25/2026, 21:46:37 UTC
Last enriched: 06/25/2026, 21:48:49 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 17
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