CVE-2009-3278

Name: CVE-2009-3278
Creator: NVD / NIST
Published: 2009-09-21T19:30:00.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.41%

Last modified Jun 16, 2026

CVE-2009-3278 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 use the rand library function to generate a certain recovery key, which makes it easier for local users to determine this key via a brute-force attack.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

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 use the rand library function to generate a certain recovery key, which makes it easier for local users to determine this key via a brute-force attack.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.41%

32.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-338

Affected Software

Vendor	Product	Versions	Update
Qnap	Ts-239 Pro Firmware	2.1.7	Build0613
Qnap	Ts-239 Pro Firmware	3.1.0	Build0627
Qnap	Ts-239 Pro Firmware	3.1.1	Build0815
Qnap	Ts-639 Pro Firmware	2.1.7	Build0613
Qnap	Ts-639 Pro Firmware	3.1.0	Build0627
Qnap	Ts-639 Pro Firmware	3.1.1	Build0815

References

http://secunia.com/advisories/36793Broken Link
http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txtExploit
http://www.securityfocus.com/archive/1/506607/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/36467Broken Link, Third Party Advisory, VDB Entry
http://secunia.com/advisories/36793Broken Link
http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txtExploit
http://www.securityfocus.com/archive/1/506607/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/36467Broken Link, Third Party Advisory, VDB Entry

Timeline

Published: Sep 21, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3278?

How severe is CVE-2009-3278?

CVE-2009-3278 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3278?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-3278?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST