CVE-2026-22855

CRITICAL

Freerdp < 3.20.1 - Out-of-Bounds Read

Title source: rule
STIX 2.1

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when cbAttrLen does not match the actual NDR buffer length. This vulnerability is fixed in 3.20.1.

References (2)

Core 2
Core References

Scores

CVSS v3 9.1
EPSS 0.0009
EPSS Percentile 24.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (1)
freerdp/freerdp < 3.20.1
Published Jan 14, 2026
Tracked Since Feb 18, 2026