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Unrated severityNVD Advisory· Published Jan 13, 2026· Updated Apr 1, 2026

Microsoft Excel Security Feature Bypass Vulnerability

CVE-2026-20949

Description

Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.

Affected products

6
  • Microsoft/Office Excelllm-fuzzy
  • Microsoft/Microsoft 365 Apps for Enterprisev5
    Range: 16.0.1
  • Microsoft/Microsoft Office LTSC 2021v5
    Range: 16.0.1
  • Microsoft/Microsoft Office LTSC 2024v5
    Range: 16.0.0
  • Microsoft/Microsoft Office LTSC for Mac 2021v5
    Range: 16.0.1
  • Microsoft/Microsoft Office LTSC for Mac 2024v5
    Range: 16.0.0

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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