Apple · Mail · CVE-2005-0127
**Name of the Vulnerable Software and Affected Versions**
Mail in Mac OS X version 10.3.7
**Description**
The issue concerns the generation of a Message-ID header in Mail, which includes a GUUID that contains information identifying the Ethernet hardware being used. This allows remote attackers to link mail messages to a particular machine.
**Recommendations**
For Mac OS X version 10.3.7, consider disabling the automatic generation of Message-ID headers or restricting access to this feature until a fix is available.