CVE-2026-69686 Security Advisory
Severity: HIGH (CVSS 8.8)
Affected Product:
- Microsoft Defender Business
Vulnerability Description: Stack-based buffer overflow in Microsoft Office Word enables remote code execution.
KEV Status: Not currently exploited in the wild
Remediation: Apply security updates from Microsoft. Reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69686
Recommended Action: Prioritize patching due to HIGH severity and network-exploitable attack vector.