CVE-2026-23948: Freerdp

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, a NULL pointer dereference vulnerability in rdp_write_logon_info_v2() allows a malicious RDP server to crash FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with cbDomain=0 or cbUserName=0. This vulnerability is fixed in 3.22.0.

Affected products

• Freerdp Freerdp: before 3.22.0 (fixed in 3.22.0)

Published 2026-02-09. Last modified 2026-06-17.