CVE-2026-22855 MEDIUM

CVE-2026-22855: FreeRDP has a heap-buffer-overflow in smartcard_unpack_set_attrib_call

Vendor Freerdp
Product FreeRDP
Weakness CWE-125
Published January 14, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

5.6/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 14, 2026 CVE published
June 30, 2026 Record updated