CVE-2007-2188: Extremail

High severity, CVSS 10.0. EPSS: 2.4% chance of exploitation in the next 30 days.

eXtremail 2.1.1 and earlier does not verify the ID field (aka transaction id) in DNS responses, which makes it easier for remote attackers to conduct DNS spoofing.

Affected products

• Extremail Extremail: version 2.1 only; version 2.1.1 only

Published 2007-04-24. Last modified 2026-06-16.