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 audio_formats_free (CVE-2026-24682) * 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, an open-source RDP client, contained multiple vulnerabilities including heap-use-after-free (CVE-2026-22856, CVE-2026-24675, CVE-2026-24681, CVE-2026-24683, CVE-2026-24684), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679, CVE-2026-24682), NULL pointer dereference (CVE-2026-23948), denial of service via buffer overflow and use-after-free (CVE-2026-23732, CVE-2026-24676), and arbitrary code execution via crafted RDP server messages (CVE-2026-31806). These vulnerabilities affect FreeRDP packages in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has issued an important security advisory (RHSA-2026:6743) with updated packages to remediate these issues.
Potential Impact
The vulnerabilities include memory corruption issues such as heap-use-after-free and heap-buffer-overflow, which can lead to denial of service or potentially arbitrary code execution. The arbitrary code execution vulnerability (CVE-2026-31806) allows execution of malicious code via crafted RDP server messages. These issues could allow attackers to disrupt service or execute code on affected systems running vulnerable FreeRDP versions.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products. Users should apply these official patches as described in Red Hat advisory RHSA-2026:6743 (https://access.redhat.com/errata/RHSA-2026:6743). No alternative mitigations are indicated; applying the vendor-provided updates is the recommended remediation.
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 audio_formats_free (CVE-2026-24682) * 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, an open-source RDP client, contained multiple vulnerabilities including heap-use-after-free (CVE-2026-22856, CVE-2026-24675, CVE-2026-24681, CVE-2026-24683, CVE-2026-24684), heap-buffer-overflow (CVE-2026-22852, CVE-2026-22854, CVE-2026-24679, CVE-2026-24682), NULL pointer dereference (CVE-2026-23948), denial of service via buffer overflow and use-after-free (CVE-2026-23732, CVE-2026-24676), and arbitrary code execution via crafted RDP server messages (CVE-2026-31806). These vulnerabilities affect FreeRDP packages in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has issued an important security advisory (RHSA-2026:6743) with updated packages to remediate these issues.
Potential Impact
The vulnerabilities include memory corruption issues such as heap-use-after-free and heap-buffer-overflow, which can lead to denial of service or potentially arbitrary code execution. The arbitrary code execution vulnerability (CVE-2026-31806) allows execution of malicious code via crafted RDP server messages. These issues could allow attackers to disrupt service or execute code on affected systems running vulnerable FreeRDP versions.
Mitigation Recommendations
Red Hat has released security updates for FreeRDP in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products. Users should apply these official patches as described in Red Hat advisory RHSA-2026:6743 (https://access.redhat.com/errata/RHSA-2026:6743). No alternative mitigations are indicated; applying the vendor-provided updates is the recommended remediation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:6743
- Cve Count
- 14
- 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-2026-24682","CVE-2026-24683","CVE-2026-24684","CVE-2026-31806"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd851699e6
Added to database: 06/09/2026, 10:23:14 UTC
Last enriched: 06/25/2026, 23:08:31 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 138
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