Out-of-bounds Write Affecting freerdp2 package, versions <2.11.7+dfsg1-6~deb12u1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
1.5% (73rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-FREERDP2-18066949
  • published21 Jul 2026
  • disclosed31 Aug 2023

Introduced: 31 Aug 2023

CVE-2023-40567  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest freerdp2 to version 2.11.7+dfsg1-6~deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp2 package and not the freerdp2 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the clear_decompress_bands_data function in which there is no offset validation. Abuse of this vulnerability may lead to an out of bounds write. 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 vulnerability.

CVSS Base Scores

version 3.1