CVE-2023-40589

4.3 MEDIUM
Published: August 31, 2023 Modified: November 03, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-gc34-mw6m-g42x
Source: security-advisories@github.com
Exploit Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
Source: security-advisories@github.com
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202401-16
Source: security-advisories@github.com
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-gc34-mw6m-g42x
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202401-16
Source: af854a3a-2127-422b-91ae-364da2661108

15 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.3 / 10.0
EPSS (Exploit Probability)
0.1%
35th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

debian fedoraproject freerdp