CVE-2026-14266: 7-Zip Heap Overflow Flaw Can Lead to Remote Code Execution

A newly disclosed flaw in 7-Zip has raised fresh concerns about malicious archive handling and user-driven exploitation. CVE-2026-14266 is a heap-based buffer overflow tied to the way 7-Zip processes XZ chunked data, and successful exploitation may allow arbitrary code execution in the context of the current user. The issue is especially important because 7-Zip remains one of the most widely used file archiving tools across enterprise and personal environments. While the flaw…