Red Hat Security Advisory: freerdp security update
Multiple security vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol (RDP) used by the xfreerdp client. These include heap-use-after-free, heap-buffer-overflow, NULL pointer dereference, denial of service, and arbitrary code execution issues. The vulnerabilities affect FreeRDP versions included in Red Hat Enterprise Linux 9.4 Extended Update Support and related Red Hat products. Red Hat has issued a security advisory with updates to address these issues.
AI Analysis
Technical Summary
FreeRDP contains multiple critical memory corruption and denial of service vulnerabilities, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491, CVE-2026-24675, CVE-2026-24681, CVE-2026-24683, CVE-2026-24684), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679), NULL pointer dereference (CVE-2026-23948), denial of service via FastGlyph parsing buffer overflow (CVE-2026-23732) and AUDIN format renegotiation use-after-free (CVE-2026-24676). Additionally, an arbitrary code execution vulnerability exists via crafted RDP server messages (CVE-2026-31806). These vulnerabilities impact the xfreerdp client connecting to various RDP servers. Red Hat has released patches for these issues in their Enterprise Linux 9.4 Extended Update Support and related CodeReady Linux Builder products.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions or arbitrary code execution on systems running vulnerable versions of FreeRDP. Heap-use-after-free and heap-buffer-overflow issues may allow attackers to execute arbitrary code or crash the client. NULL pointer dereference and parsing buffer overflow vulnerabilities can cause application crashes, resulting in denial of service. The arbitrary code execution vulnerability via crafted RDP server messages poses a significant risk of remote compromise.
Mitigation Recommendations
Red Hat has released security updates addressing these vulnerabilities in FreeRDP for Red Hat Enterprise Linux 9.4 Extended Update Support and related products. Users should apply the updated packages as detailed in Red Hat Advisory RHSA-2026:6958. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official patches.
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) used by the xfreerdp client. These include heap-use-after-free, heap-buffer-overflow, NULL pointer dereference, denial of service, and arbitrary code execution issues. The vulnerabilities affect FreeRDP versions included in Red Hat Enterprise Linux 9.4 Extended Update Support and related Red Hat products. Red Hat has issued a security advisory with updates to address these issues.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains multiple critical memory corruption and denial of service vulnerabilities, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491, CVE-2026-24675, CVE-2026-24681, CVE-2026-24683, CVE-2026-24684), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679), NULL pointer dereference (CVE-2026-23948), denial of service via FastGlyph parsing buffer overflow (CVE-2026-23732) and AUDIN format renegotiation use-after-free (CVE-2026-24676). Additionally, an arbitrary code execution vulnerability exists via crafted RDP server messages (CVE-2026-31806). These vulnerabilities impact the xfreerdp client connecting to various RDP servers. Red Hat has released patches for these issues in their Enterprise Linux 9.4 Extended Update Support and related CodeReady Linux Builder products.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions or arbitrary code execution on systems running vulnerable versions of FreeRDP. Heap-use-after-free and heap-buffer-overflow issues may allow attackers to execute arbitrary code or crash the client. NULL pointer dereference and parsing buffer overflow vulnerabilities can cause application crashes, resulting in denial of service. The arbitrary code execution vulnerability via crafted RDP server messages poses a significant risk of remote compromise.
Mitigation Recommendations
Red Hat has released security updates addressing these vulnerabilities in FreeRDP for Red Hat Enterprise Linux 9.4 Extended Update Support and related products. Users should apply the updated packages as detailed in Red Hat Advisory RHSA-2026:6958. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are specified 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-2026:6958
- Cve Count
- 13
- Additional Cves
- ["CVE-2026-22854","CVE-2026-22856","CVE-2026-23732","CVE-2026-23948","CVE-2026-24491","CVE-2026-24675","CVE-2026-24676","CVE-2026-24679","CVE-2026-24681","CVE-2026-24683","CVE-2026-24684","CVE-2026-31806"]
Threat ID: 6a27e9928dd33fbd851699cb
Added to database: 06/09/2026, 10:23:14 UTC
Last enriched: 08/18/2026, 13:53:22 UTC
Last updated: 09/11/2026, 07:31:52 UTC
Views: 91
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