CVE-2007-3147: Yahoo Messenger

High severity, CVSS 9.3. EPSS: 40.4% chance of exploitation in the next 30 days.

Buffer overflow in the Yahoo! Webcam Upload ActiveX control in ywcupl.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the send method. NOTE: some of these details are obtained from third party information.

Affected products

• Yahoo Messenger: version 2.0.1.4 only; version 8.0 only; version 8.0.0.863 only; version 8.0.1 only; version 8.0_2005.1.1.4 only; version 8.1.0.249 only

Published 2007-06-11. Last modified 2026-06-16.