CVE-2008-3442: Winzip

High severity, CVSS 7.5. EPSS: 3.8% chance of exploitation in the next 30 days.

WinZip before 11.0 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.

Affected products

• Winzip Winzip: version 7.0 only; version 8.0 only; version 8.1 only; version 9.0 only; version 10.0 only

Published 2008-08-01. Last modified 2026-06-16.