CVE-2012-3730: Apple iPhone OS

Medium severity, CVSS 4.3. EPSS: 1.7% chance of exploitation in the next 30 days.

Mail in Apple iOS before 6 does not properly handle reuse of Content-ID header values, which allows remote attackers to spoof attachments via a header value that was also used in a previous e-mail message, as demonstrated by a message from a different sender.

Affected products

• Apple iPhone OS: up to and including 5.1.1; version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.1.0 only; version 1.1.1 only; …

Published 2012-09-20. Last modified 2026-06-16.