CVE-2006-6252: Microsoft Windows Live Messenger

Medium severity, CVSS 4.3. EPSS: 11.2% chance of exploitation in the next 30 days.

Microsoft Windows Live Messenger 8.0 and earlier, when gestual emoticons are enabled, allows remote attackers to cause a denial of service (CPU consumption) via a long string composed of ":D" sequences, which are interpreted as emoticons.

Affected products

• Microsoft Windows Live Messenger: up to and including 8.0

Published 2006-12-04. Last modified 2026-06-16.