CVE-2021-41159CWE-787

Improper client input validation for FreeRDP gateway connections allows to overwrite memory

Medium · published October 21, 2021

CVSS v3.1
5.8
EPSS
1%
Percentile
73.9
In the wild
Unconfirmed
What it is

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01492 · 73.9th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2021-10-21T00:00Z
EPSS history
Timeline
  • 21 OCT 00:00Z
    Improper client input validation for FreeRDP gateway connections allows to overwrite memory
    cvelistv5