CVE Watch15 jul 2026

CVE-2026-23531

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, in ClearCodec, when `glyphData` is present, `clear

CVSS

9.8

Crítico

EPSS

0.4%

p36

KEV

—

Exploit Today

0-100

Publicado: 19 ene 2026 · Última mod.: 15 jul 2026 · CWE-122

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-06-302026-07-18

Descripción técnica

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, in ClearCodec, when `glyphData` is present, `clear_decompress` calls `freerdp_image_copy_no_overlap` without validating the destination rectangle, allowing an out-of-bounds read/write via crafted RDPGFX surface updates. A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

Referencias oficiales

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