Microsoft releases update to address zero
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-21509 | Local Security Feature Bypass in Microsoft Office Under Active Exploitation | 7.8 | 71% | KEV | KEV |
From the original article
1 min read at blog.talosintelligence.com
Microsoft has published three out-of-band (OOB) updates so far in January 2026. One of these updates was released to address a vulnerability, CVE-2026-21509 , affecting Microsoft Office that has been reportedly exploited in the wild.
blog.talosintelligence.com
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