Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-14266

Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-122 Desbordamiento de búfer basado en memoria dinámica (Heap)
Fecha de publicación:
29/07/2026
Última modificación:
30/07/2026

Descripción

*** Pendiente de traducción *** 7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.<br /> <br /> The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.