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-use-after-free in ainput_send_input_event (CVE-2026-24683) * 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
FreeRDP contains multiple security flaws including heap-use-after-free (e.g., CVE-2026-22856), heap-buffer-overflow (e.g., CVE-2026-22852, CVE-2026-22854), denial of service via buffer overflow and use-after-free conditions, NULL pointer dereference, and an arbitrary code execution vulnerability (CVE-2026-31806) triggered by crafted RDP server messages. These vulnerabilities impact the xfreerdp client in Red Hat Enterprise Linux 9.6 Extended Update Support and related variants across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat has released updated freerdp packages to remediate these issues as detailed in advisory RHSA-2026:6727.
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. The arbitrary code execution vulnerability (CVE-2026-31806) is particularly critical as it allows execution of attacker-controlled code via crafted RDP server messages. Other flaws may cause crashes or memory corruption, potentially disrupting remote desktop sessions or compromising system stability.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 9.6 Extended Update Support and related products. Users should apply the updated packages as described in Red Hat advisory RHSA-2026:6727 and the referenced article https://access.redhat.com/articles/11258 to remediate these vulnerabilities. Patch status is confirmed with official fixes available. No additional mitigation steps are specified beyond applying the vendor-provided updates.
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-use-after-free in ainput_send_input_event (CVE-2026-24683) * 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP contains multiple security flaws including heap-use-after-free (e.g., CVE-2026-22856), heap-buffer-overflow (e.g., CVE-2026-22852, CVE-2026-22854), denial of service via buffer overflow and use-after-free conditions, NULL pointer dereference, and an arbitrary code execution vulnerability (CVE-2026-31806) triggered by crafted RDP server messages. These vulnerabilities impact the xfreerdp client in Red Hat Enterprise Linux 9.6 Extended Update Support and related variants across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat has released updated freerdp packages to remediate these issues as detailed in advisory RHSA-2026:6727.
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. The arbitrary code execution vulnerability (CVE-2026-31806) is particularly critical as it allows execution of attacker-controlled code via crafted RDP server messages. Other flaws may cause crashes or memory corruption, potentially disrupting remote desktop sessions or compromising system stability.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 9.6 Extended Update Support and related products. Users should apply the updated packages as described in Red Hat advisory RHSA-2026:6727 and the referenced article https://access.redhat.com/articles/11258 to remediate these vulnerabilities. Patch status is confirmed with official fixes available. No additional mitigation steps are specified beyond applying the vendor-provided updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:6727
- 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"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd85169a0c
Added to database: 06/09/2026, 10:23:14 UTC
Last enriched: 06/25/2026, 23:08:08 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 164
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