CVE-2003-0881: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

Mail in Mac OS X before 10.3, when configured to use MD5 Challenge Response, uses plaintext authentication if the CRAM-MD5 hashed login fails, which could allow remote attackers to gain privileges by sniffing the password.

Affected products

• Apple Mac OS X: up to and including 10.3

Published 2003-11-03. Last modified 2026-06-16.