CVE-2010-0744: Alvaro Alvaros Messenger

Medium severity, CVSS 5.8. EPSS: 1.3% chance of exploitation in the next 30 days.

aMSN (aka Alvaro's Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.

Affected products

• Alvaro Alvaros Messenger: up to and including 0.98.3; version 0.83 only; version 0.90 only; version 0.91 only; version 0.92 only; version 0.93 only; …

Published 2010-04-20. Last modified 2026-06-16.