CVE-2009-3200: QNAP Ts-239 Pro Turbo NAS

Medium severity, CVSS 5.9. EPSS: 0.4% chance of exploitation in the next 30 days.

The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in the ENCK variable in flash memory, which allows local users to bypass the passphrase requirement and decrypt the hard drive by reading this variable, deobfuscating the key, and running a cryptsetup luksOpen command.

Affected products

• QNAP Ts-239 Pro Turbo NAS: version 2.1.7_0613 only; version 3.1.0_0627 only; version 3.1.1_0815 only
• QNAP Ts-639 Pro Turbo NAS: version 2.1.7_0613 only; version 3.1.0_0627 only; version 3.1.1_0815 only

Published 2009-09-21. Last modified 2026-06-16.