Medium September 9, 2026

CVE-2026-69734: Security Advisory

CVE-2026-69734 CVSS 6.5

Who it affects: See the summary below.
What to do: Apply the vendor's update in your next patch window.

CVE-2026-69734

CVSS Score: 6.5 (Medium)
KEV Exploited: No

Affected Products

Microsoft Defender Business

Vulnerability

Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

Remediation

Refer to Microsoft Security Response Center update guidance: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69734

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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