Security Advisory

CVE-2026-21259

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-02-10 17:51:17
Last updated 2026-08-19 16:25:49
Assigner microsoft
CVSS score 7.8
State PUBLISHED

Description

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.