Is CVE-2009-3278 being actively exploited?

CVE-2009-3278 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3278?

CVE-2009-3278 has a CVSS 3.1 base score of 5.5 (MEDIUM).

CVE-2009-3278

MEDIUM · CVSS 5.5EPSS 0.4%EU EUVD

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.

Key facts

CVSS score: 5.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-338
EPSS score: 0.4% (35th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3261)
Published: September 21, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3261 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

qnap / ts-239 pro
qnap / ts-239 pro firmware
qnap / ts-239 pro firmware
qnap / ts-239 pro firmware
qnap / ts-639 pro
qnap / ts-639 pro firmware
qnap / ts-639 pro firmware
qnap / ts-639 pro firmware

References

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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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