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Vulnerabilities CVE-2026-57156

CVE-2026-57156

High
Open
TLP:CLEAR

FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing

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Description

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.

Details

CVSS Score
8.6
EPSS Score
0.42%

34.6th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 10, 2026
Last Modified
Jul 13, 2026
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