CVE-2026-64909

Microsoft — Microsoft Office Remote Code Execution Vulnerability

Patch Tuesday

What EVULNABLE says

EVULNABLE Risk · priority 12/100 Elevated Intelligence coverage 90/100 — no ransomware association data, no CISA KEV listing date
Patch Tuesday

Why it matters: CVSS base score 7.8, and Microsoft Exploitability Index: Exploitation Less Likely.

Scheduled Maintenance

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2026-64909
MeasureValueSource
CVSS base score 7.8
FIRST EPSS 0.003 (26.8th pctl) FIRST
Actively exploited Not confirmed Patch Tuesday
Intelligence coverage 90/100 — no ransomware association data, no CISA KEV listing date

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.