CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. It affects Microsoft, Office.
CVE
CVE-2026-21511
Severity
HIGH
CVSS
7.5
EPSS
3.64%
Microsoft Office
Original NVD Description
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Related CVEs
Other vulnerabilities affecting the same vendor(s)