CVE-2026-24677: Freerdp

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale. 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.