High 7.7Published Jan 19, 2026

CVE-2026-23883Heap-use-after-free in update_pointer_new

Updated under an hour ago (Oct 26, 2026, 4:20 PM ET)

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It affects FreeRDP and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for FreeRDP

Exploited in the last 30 days

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

CVSS: 7.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FreeRDP FreeRDP freerdp:freerdp (from the name)	before 3.21.0	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 2:3.10.3-5.el10_1.1 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 2:3.10.3-3.el10_0.1 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions redhat:rhel_e4s	from 2:2.4.1-3.el9_0 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus	from 2:2.11.2-1.el9_4.1 not affected	CISA ADP
freerdp freerdp freerdp:freerdp	before 3.21.0	NVD

References

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcrr-85qx-4p6x	x-refsource-confirm, exploit, vendor-advisory
https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_graphics.c#L312-L319	x-refsource-misc, product
https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_graphics.c#L340	x-refsource-misc, product
https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/libfreerdp/cache/pointer.c#L164-L174	x-refsource-misc, product
https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0	x-refsource-misc, release-notes
https://access.redhat.com/errata/RHSA-2026:2048
https://access.redhat.com/errata/RHSA-2026:2081
https://access.redhat.com/errata/RHSA-2026:2222
https://access.redhat.com/errata/RHSA-2026:2736
https://access.redhat.com/errata/RHSA-2026:2770
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.