CVE-2026-23732: Freerdp

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts `cbData`/remaining length and never validates against the minimum size implied by `cx/cy`. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.

Affected products

• Freerdp Freerdp: before 3.21.0 (fixed in 3.21.0)

Published 2026-01-19. Last modified 2026-06-17.