CVE-2026-27951

MEDIUM

5.3

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/25/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

freerdp:freerdp

Weaknesses (CWE)

CWE-190

References

https://github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113(security-advisories@github.com)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927(security-advisories@github.com)

IOC Correlations

No correlations recorded

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