🛡️ CVE-2026-23883
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-416 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-416
Public Exploit ⚠️ Yes
Source NVD
Published 2026-01-19
Updated 2026-06-02
Modified 2026-01-28
Fix URL N/A

Affected Packages

Software From version Fixed in
freerdp — 3.21.0

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