CVE-2009-3278 json
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…
published 2009-09-21 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3261
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- baseline-security.de http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:C/I:N/A:N |
Classification
- Weakness
-
- CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
References
-
baseline-security.de
/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt
exploit
-
secunia.com
/advisories/36793
third-party-advisory, broken-link
-
securityfocus.com
/archive/1/506607/100/0/threaded
mailing-list, broken-link, third-party-advisory, vdb-entry
-
securityfocus.com
/bid/36467
vdb-entry, broken-link, third-party-advisory
Sources
- CVE List CVE-2009-3278
- NVD CVE-2009-3278
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.