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CVE-2026-80079: Security Advisory

CVE-2026-80079 CVSS 6.5
Who it affects
See the summary below.
What to do
Apply the vendor's update in your next patch window.

CVE-2026-80079

Severity: MEDIUM (CVSS 6.5)
KEV Status: Not currently exploited in the wild

Affected Product:

  • Microsoft Defender Business

Vulnerability: Out-of-bounds read in Microsoft Office Word allowing unauthorized information disclosure over a network.

Remediation: Apply security updates from Microsoft. Refer to Microsoft Security Response Center for patch availability and deployment guidance.

Data as of September 9, 2026. Sources: nvd.nist.gov, msrc.microsoft.com. Figures are pulled from public vendor and security data and refreshed automatically.
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