No exploitation reported

CVE-2009-3278

No exploitation reported by the sources we read.

Published2009-09-21
WeaknessCWE-338

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2009-09-2119:30CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2009-3278?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2009-3278?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Qnap ts-239 pro firmwareversion to verify

Branch	Affected	Fixed in	Source
2.1	= 2.1.7	no fix published	NVD
3.1	= 3.1.0	no fix published	NVD
3.1	= 3.1.1	no fix published	NVD

Qnap ts-639 pro firmwareversion to verify

Branch	Affected	Fixed in	Source
2.1	= 2.1.7	no fix published	NVD
3.1	= 3.1.0	no fix published	NVD
3.1	= 3.1.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.15.5read 2026-10-23
NVDCVSS 2.04.9read 2026-10-23
NVDweakness (CWE)CWE-338read 2026-10-23
FIRST EPSSEPSS score0.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published: 2009-09-21
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-2009-3278?

Is CVE-2009-3278 actively exploited?

Active exploitation of CVE-2009-3278 has not been confirmed. Its EPSS score was 0.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

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

CVE-2009-3278 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

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