CVE-2026-57156: Freerdp

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.

Affected products

• Freerdp Freerdp: before 3.28.0 (fixed in 3.28.0)

Published 2026-07-10. Last modified 2026-07-15.