CVE-2026-40421ImportantMonitor
Microsoft Word Information Disclosure Vulnerability
Severity Important · Urgency Monitor
Why it matters: Important severity (CVSS 4.3)
Information Disclosure · Important · CVSS 4.3. Affects: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Word.
Affected: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Word
Change history
2026-06-23 · First seen