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

CVE-2026-14266 is a heap-based buffer overflow in 7-Zip's XZ handling that can enable arbitrary code execution when a user processes crafted archive content; the advisory urges immediate updates to 7-Zip 26.02 or later, outlines detection and mitigation steps (inventorying vulnerable versions, user guidance, attachment scanning), and notes no public PoC or IOCs were available at publication.