VULNERABILITY INTELLIGENCE
CVE-2009-3200
CVSS score5.9 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2009-09-21
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:C/I:P/A:P
Description
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.