CVE-2026-27951

HIGH EPSS 26.4%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
26.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 1

VendorProductVersionRange
freerdpfreerdp* <3.23.0

References 2

  • github.com https://github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113
    Patch
  • github.com https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927
    ExploitPatchVendor Advisory

Remediation

  • github.com https://github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113
    Patch
  • github.com https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927
    ExploitPatchVendor Advisory