CVE-2026-21509: Microsoft Office Security Feature Bypass Vulnerability · RaqibCTI

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CVE

CVE-2026-21509

P2

Microsoft Office Security Feature Bypass Vulnerability

Microsoft · Office

Date added (CISA)

2026-01-26

Remediation due

2026-02-16

Known ransomware use

Not indicated

Remediation priority

P2 — past CISA due date

Overview ATT&CK Related

Related

Nothing linked yet

No threat actor or pipeline report has been cross-referenced against this CVE yet.

Source: NVD ↗ · CISA KEV Catalog ↗