CVE-2026-22853

Published January 14th, 2026

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CVSS v3

9.8

CRITICAL

CVSS v2

N/A

Affected

PROJECT

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.

FreeRDP/FreeRDP

FreeRDP is a free remote desktop protocol library and clients

GitHub

13.3K