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 (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 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 impact the xfreerdp client and related FreeRDP components distributed with Red Hat Enterprise Linux 9.4 Extended Update Support and associated CodeReady Linux Builder and other Red Hat variants. Red Hat has released updated packages to fix these vulnerabilities as detailed in advisory RHSA-2026:6958.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions, application crashes, or arbitrary code execution on systems running vulnerable FreeRDP versions. 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 issues such as heap-use-after-free and buffer overflows may also lead to system instability or potential escalation of privileges. The vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related products.
Mitigation Recommendations
Red Hat has issued official 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 provided by Red Hat as described in advisory RHSA-2026:6958 and the linked article https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official patches. Patch status is confirmed as fixed in the updated Red Hat packages.
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 (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 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 impact the xfreerdp client and related FreeRDP components distributed with Red Hat Enterprise Linux 9.4 Extended Update Support and associated CodeReady Linux Builder and other Red Hat variants. Red Hat has released updated packages to fix these vulnerabilities as detailed in advisory RHSA-2026:6958.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions, application crashes, or arbitrary code execution on systems running vulnerable FreeRDP versions. 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 issues such as heap-use-after-free and buffer overflows may also lead to system instability or potential escalation of privileges. The vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related products.
Mitigation Recommendations
Red Hat has issued official 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 provided by Red Hat as described in advisory RHSA-2026:6958 and the linked article https://access.redhat.com/articles/11258. No additional mitigations are specified beyond applying the official patches. Patch status is confirmed as fixed in the updated Red Hat packages.
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"]
- Cvss Version
- null
Threat ID: 6a27e9928dd33fbd851699cb
Added to database: 06/09/2026, 10:23:14 UTC
Last enriched: 06/25/2026, 23:07:13 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 68
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