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-use-after-free in play_thread (CVE-2026-24684) * freerdp: FreeRDP has a heap-use-after-free in urb_bulk_transfer_cb (CVE-2026-24681) * freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface (CVE-2026-24679) * freerdp: FreeRDP has a Heap-use-after-free in urb_select_interface (CVE-2026-24675) * 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 a set of twelve security vulnerabilities in FreeRDP, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491, CVE-2026-24675, CVE-2026-24681, CVE-2026-24684), 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 through crafted RDP server messages (CVE-2026-31806). These vulnerabilities affect the FreeRDP client implementation used in Red Hat Enterprise Linux 9.2 and related packages. The Red Hat advisory RHSA-2026:9641 provides updated packages to remediate these issues. The vulnerabilities pose risks including denial of service and potential arbitrary code execution on affected systems.
Potential Impact
The vulnerabilities collectively allow for heap-based memory corruption (use-after-free and buffer overflow), NULL pointer dereference, denial of service conditions, and arbitrary code execution triggered by maliciously crafted RDP server messages. This can lead to system instability, crashes, and potentially remote code execution on clients using vulnerable FreeRDP versions. The advisory rates the security impact as Important, indicating significant risk to affected systems if unpatched.
Mitigation Recommendations
Red Hat has released updated FreeRDP packages addressing all listed vulnerabilities in Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions and related variants. Users should apply the security update provided in advisory RHSA-2026:9641 promptly to remediate these issues. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations beyond applying the official update are specified.
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-use-after-free in play_thread (CVE-2026-24684) * freerdp: FreeRDP has a heap-use-after-free in urb_bulk_transfer_cb (CVE-2026-24681) * freerdp: FreeRDP has a heap-buffer-overflow in urb_select_interface (CVE-2026-24679) * freerdp: FreeRDP has a Heap-use-after-free in urb_select_interface (CVE-2026-24675) * 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 a set of twelve security vulnerabilities in FreeRDP, including heap-use-after-free (CVE-2026-22856, CVE-2026-24491, CVE-2026-24675, CVE-2026-24681, CVE-2026-24684), 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 through crafted RDP server messages (CVE-2026-31806). These vulnerabilities affect the FreeRDP client implementation used in Red Hat Enterprise Linux 9.2 and related packages. The Red Hat advisory RHSA-2026:9641 provides updated packages to remediate these issues. The vulnerabilities pose risks including denial of service and potential arbitrary code execution on affected systems.
Potential Impact
The vulnerabilities collectively allow for heap-based memory corruption (use-after-free and buffer overflow), NULL pointer dereference, denial of service conditions, and arbitrary code execution triggered by maliciously crafted RDP server messages. This can lead to system instability, crashes, and potentially remote code execution on clients using vulnerable FreeRDP versions. The advisory rates the security impact as Important, indicating significant risk to affected systems if unpatched.
Mitigation Recommendations
Red Hat has released updated FreeRDP packages addressing all listed vulnerabilities in Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions and related variants. Users should apply the security update provided in advisory RHSA-2026:9641 promptly to remediate these issues. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigations beyond applying the official update are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:9641
- Cve Count
- 12
- 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-2026-24684","CVE-2026-31806"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd85169555
Added to database: 6/9/2026, 10:23:14 AM
Last enriched: 6/9/2026, 10:33:10 AM
Last updated: 6/10/2026, 5:14:50 AM
Views: 2
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