CVE Watch16 jul 2026

CVE-2026-40033

FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface that allows remote attackers to write out-of-bound

CVSS

8.8

Alto

EPSS

0.8%

p53

KEV

—

Exploit Today

0-100

Publicado: 26 may 2026 · Última mod.: 16 jul 2026 · CWE-122 · CWE-787

EPSS · 30d

0.8%EPSS · 30 días0.8%

2026-06-302026-07-16

Descripción técnica

FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16_MAX but performs copy operations using unclamped cache entry dimensions, enabling malicious RDP servers to trigger large out-of-bounds writes and potentially achieve remote code execution or client crash.

Referencias oficiales

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