Microsoft 365 Apps for Enterprise vulnerability

What happened

Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected versions

Microsoft 365 Apps for Enterprise: 16.0.1 through before https://aka.ms/OfficeSecurityReleases (custom); 16.0.0 through before https://aka.ms/OfficeSecurityReleases (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.