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.
References
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-47v9-p4gp-w5ch
ExploitVendor Advisory
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 · Critical
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-14T18:16:42.790Z
6 days agoLast modified
2026-01-20T18:39:31.770Z
10 hours ago