CVE-2026-27951CWE-190

FreeRDP has possible Integer overflow in Stream_EnsureCapacity

Medium · published February 25, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
33.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00405 · 33.6th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-02-25T21:07Z
EPSS history
Timeline
  • 25 FEB 21:07Z
    FreeRDP has possible Integer overflow in Stream_EnsureCapacity
    cvelistv5