CVE-2010-0024: Microsoft Exchange Server

Medium severity, CVSS 5.0. EPSS: 10.7% chance of exploitation in the next 30 days.

The SMTP component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, and Server 2008 Gold, SP2, and R2, and Exchange Server 2003 SP2, does not properly parse MX records, which allows remote DNS servers to cause a denial of service (service outage) via a crafted response to a DNS MX record query, aka "SMTP Server MX Record Vulnerability."

Affected products

• Microsoft Exchange Server: version 2000 only; version 2003 only; version 2007 only; version 2010 only
• Microsoft Windows 2000: affected versions not specified
• Microsoft Windows 2003 Server: affected versions not specified
• Microsoft Windows Server 2003: affected versions not specified
• Microsoft Windows Server 2008: affected versions not specified
• Microsoft Windows XP: affected versions not specified

Published 2010-04-14. Last modified 2026-06-16.