CVE-2026-57156 — FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing

Affected: FreeRDP

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.

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CVE-2026-57156 — FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing