Red Hat Security Advisory: freerdp security update
Multiple security vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP). These include heap-buffer-overflow, heap use-after-free, and out-of-bounds write issues that can lead to arbitrary code execution or denial of service. The vulnerabilities affect the xfreerdp client and related components. Red Hat has issued an important security advisory with updates for Red Hat Enterprise Linux 10 to address these issues.
AI Analysis
Technical Summary
FreeRDP contains several critical security flaws: a heap-buffer-overflow in gdi_CacheToSurface (CVE-2026-40033), a heap use-after-free in the RDPEAR NDR parser (CVE-2026-44422), an out-of-bounds write in the planar bitmap decoder (CVE-2026-45700), arbitrary code execution via crafted RDPGFX PDUs (CVE-2026-44421), and another heap-buffer-overflow causing arbitrary code execution or denial of service (CVE-2026-44420). These vulnerabilities could allow remote attackers to execute arbitrary code or cause denial of service when using the xfreerdp client to connect to RDP servers. Red Hat has released security updates for Red Hat Enterprise Linux 10 and related variants to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities may allow remote attackers to execute arbitrary code or cause denial of service on systems running vulnerable versions of FreeRDP. This could compromise system integrity and availability when using the xfreerdp client to connect to RDP servers.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 10 and its variants to address these vulnerabilities. Users should apply the updates provided in advisory RHSA-2026:36203 as soon as possible. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No indication of existing exploits in the wild has been reported.
Red Hat Security Advisory: freerdp security update
Description
Multiple security vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP). These include heap-buffer-overflow, heap use-after-free, and out-of-bounds write issues that can lead to arbitrary code execution or denial of service. The vulnerabilities affect the xfreerdp client and related components. Red Hat has issued an important security advisory with updates for Red Hat Enterprise Linux 10 to address these issues.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains several critical security flaws: a heap-buffer-overflow in gdi_CacheToSurface (CVE-2026-40033), a heap use-after-free in the RDPEAR NDR parser (CVE-2026-44422), an out-of-bounds write in the planar bitmap decoder (CVE-2026-45700), arbitrary code execution via crafted RDPGFX PDUs (CVE-2026-44421), and another heap-buffer-overflow causing arbitrary code execution or denial of service (CVE-2026-44420). These vulnerabilities could allow remote attackers to execute arbitrary code or cause denial of service when using the xfreerdp client to connect to RDP servers. Red Hat has released security updates for Red Hat Enterprise Linux 10 and related variants to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities may allow remote attackers to execute arbitrary code or cause denial of service on systems running vulnerable versions of FreeRDP. This could compromise system integrity and availability when using the xfreerdp client to connect to RDP servers.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 10 and its variants to address these vulnerabilities. Users should apply the updates provided in advisory RHSA-2026:36203 as soon as possible. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No indication of existing exploits in the wild has been reported.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:36203
- Cve Count
- 5
- Additional Cves
- ["CVE-2026-44420","CVE-2026-44421","CVE-2026-44422","CVE-2026-45700"]
- Cvss Version
- null
Threat ID: 6a4e4efdc9d9e3dbe328d202
Added to database: 07/08/2026, 13:22:05 UTC
Last enriched: 07/08/2026, 13:47:16 UTC
Last updated: 07/08/2026, 18:17:06 UTC
Views: 4
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