CVE-2023-40589 MEDIUM

CVE-2023-40589: FreeRDP Global-Buffer-Overflow in ncrush_decompress

Vendor Freerdp
Product FreeRDP
Weakness CWE-120
Published August 31, 2023
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions there is a Global-Buffer-Overflow in the ncrush_decompress function. Feeding crafted input into this function can trigger the overflow which has only been shown to cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue.

Key dates

02Disclosure timeline

August 31, 2023 CVE published
November 3, 2025 Record updated