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-use-after-free (CVE-2026-22856) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22854) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22852) * freerdp: FreeRDP: Denial of Service via FastGlyph parsing buffer overflow (CVE-2026-23732) * freerdp: FreeRDP: Denial of Service via use-after-free in AUDIN format renegotiation (CVE-2026-24676) * freerdp: FreeRDP has a heap-use-after-free in video_timer (CVE-2026-24491) * freerdp: FreeRDP has a NULL Pointer Dereference in rdp_write_logon_info_v2() (CVE-2026-23948) * freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface (CVE-2026-24679) * freerdp: FreeRDP: Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages (CVE-2026-31806) 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
This advisory covers nine distinct vulnerabilities in FreeRDP, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679), denial of service via buffer overflow and use-after-free (CVE-2026-23732, CVE-2026-24676), NULL pointer dereference (CVE-2026-23948), and arbitrary code execution via crafted RDP server messages (CVE-2026-31806). These vulnerabilities impact the freerdp client used in Red Hat Enterprise Linux Server AUS 8.2 x86_64. The Red Hat advisory RHSA-2026:10734 provides updated freerdp packages to address these issues.
Potential Impact
The vulnerabilities collectively allow for potential denial of service conditions, crashes due to memory corruption or null pointer dereference, and in the most severe case, arbitrary code execution triggered by maliciously crafted RDP server messages. This could lead to compromise of systems running vulnerable versions of FreeRDP on affected Red Hat Enterprise Linux versions.
Mitigation Recommendations
Red Hat has released updated freerdp packages as part of advisory RHSA-2026:10734 to address these vulnerabilities. Users of affected Red Hat Enterprise Linux 8.2 AUS systems should apply the provided security update promptly. Details on applying the update are available at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
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-use-after-free (CVE-2026-22856) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22854) * freerdp: FreeRDP heap-buffer-overflow (CVE-2026-22852) * freerdp: FreeRDP: Denial of Service via FastGlyph parsing buffer overflow (CVE-2026-23732) * freerdp: FreeRDP: Denial of Service via use-after-free in AUDIN format renegotiation (CVE-2026-24676) * freerdp: FreeRDP has a heap-use-after-free in video_timer (CVE-2026-24491) * freerdp: FreeRDP has a NULL Pointer Dereference in rdp_write_logon_info_v2() (CVE-2026-23948) * freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface (CVE-2026-24679) * freerdp: FreeRDP: Arbitrary code execution via crafted Remote Desktop Protocol (RDP) server messages (CVE-2026-31806) 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-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers nine distinct vulnerabilities in FreeRDP, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679), denial of service via buffer overflow and use-after-free (CVE-2026-23732, CVE-2026-24676), NULL pointer dereference (CVE-2026-23948), and arbitrary code execution via crafted RDP server messages (CVE-2026-31806). These vulnerabilities impact the freerdp client used in Red Hat Enterprise Linux Server AUS 8.2 x86_64. The Red Hat advisory RHSA-2026:10734 provides updated freerdp packages to address these issues.
Potential Impact
The vulnerabilities collectively allow for potential denial of service conditions, crashes due to memory corruption or null pointer dereference, and in the most severe case, arbitrary code execution triggered by maliciously crafted RDP server messages. This could lead to compromise of systems running vulnerable versions of FreeRDP on affected Red Hat Enterprise Linux versions.
Mitigation Recommendations
Red Hat has released updated freerdp packages as part of advisory RHSA-2026:10734 to address these vulnerabilities. Users of affected Red Hat Enterprise Linux 8.2 AUS systems should apply the provided security update promptly. Details on applying the update are available at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:10734
- Cve Count
- 9
- Additional Cves
- ["CVE-2026-22854","CVE-2026-22856","CVE-2026-23732","CVE-2026-23948","CVE-2026-24491","CVE-2026-24676","CVE-2026-24679","CVE-2026-31806"]
- Cvss Version
- null
Threat ID: 6a27e9918dd33fbd8516926c
Added to database: 6/9/2026, 10:23:13 AM
Last enriched: 6/9/2026, 10:32:27 AM
Last updated: 6/10/2026, 5:12:32 AM
Views: 2
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