CVE-2010-0039: Apple Airport Express

Low severity, CVSS 2.6. EPSS: 1.7% chance of exploitation in the next 30 days.

The Application-Level Gateway (ALG) on the Apple Time Capsule, AirPort Extreme Base Station, and AirPort Express Base Station with firmware before 7.5.2 modifies PORT commands in incoming FTP traffic, which allows remote attackers to use the device's IP address for arbitrary intranet TCP traffic by leveraging write access to an intranet FTP server.

Affected products

• Apple Airport Express: any version
• Apple Airport Express Base Station Firmware: up to and including 7.4.2; version 3.84 only; version 4.0.9 only; version 6.1 only; version 6.3 only; version 7.3.2 only; …
• Apple Airport Extreme: any version
• Apple Airport Extreme Base Station Firmware: version 5.5 only; version 5.7 only
• Apple Time Capsule: any version

Published 2010-12-22. Last modified 2026-06-16.