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CVE-2026-27950 Details

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow referenced in the advisory exists in the SDL2 implementation, the fix appears to have been applied only to the SDL3 code path. In the SDL2 implementation, the pointer is not nulled after free. This creates a situation where the advisory suggests the vulnerability is fully resolved, while builds or environments still using SDL2 may retain the vulnerable logic. A complete fix is available in version 3.23.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/FreeRDP/FreeRDP/blob/master/client/SDL/SDL2/sdl_pointer.cpp#L63-L64	[email protected]	Product
https://github.com/FreeRDP/FreeRDP/commit/5f62aa11c1bdf00f94c40ea9ebb260a752740b80	[email protected]	Patch
https://github.com/FreeRDP/FreeRDP/commit/c42ecbd183b001e76bfc3614cddfad0034acc758	[email protected]	Patch
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rvfg-86cr-5r6p	[email protected]	PatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
freerdp freerdp	< 3.23.0
CPE cpe:2.3:a:freerdp:freerdp:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Feb 27, 2026	Initial Analysis	[email protected]
Feb 25, 2026	New CVE Received	[email protected]