CVE-2008-5181: Microsoft Office Communicator

Medium severity, CVSS 5.0. EPSS: 12.7% chance of exploitation in the next 30 days.

Microsoft Communicator allows remote attackers to cause a denial of service (application or device outage) via instant messages containing large numbers of emoticons.

Affected products

• Microsoft Office Communicator: any version

Published 2008-11-20. Last modified 2026-06-16.