CVE-2026-27950 MEDIUM

CVE-2026-27950: FreeRDP heap-use-after-free in update_pointer_new(SDL): Fix Applied in the Wrong File

Vendor Freerdp
Product FreeRDP
Weakness CWE-416
Published February 25, 2026
Last update February 26, 2026

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 25, 2026 CVE published
February 26, 2026 Record updated