CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.8. It affects Microsoft, Office.
CVE
CVE-2026-21259
Severity
HIGH
CVSS
7.8
EPSS
0.52%
Microsoft Office
Original NVD Description
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
Related CVEs
Other vulnerabilities affecting the same vendor(s)