CVE-2023-39303 json
QTS, QuTS hero, QuTScloud
published 2024-02-02 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43035
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
An improper authentication vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network.
We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTScloud c5.1.5.2651 and later
Patch / fix
- QNAP Systems Inc. QTS 5.1.3.2578 build 20231110
- QNAP Systems Inc. QuTS hero h5.1.3.2578 build 20231110
- QNAP Systems Inc. QuTScloud c5.1.5.2651
- qnap qts 5.1.3.2578_build 20231110
- qnap quts_hero 5.1.3.2578_build 20231110
- qnap qutscloud 5.1.5.2651
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- QNAP Systems Inc. QTS
- QNAP Systems Inc. QuTS hero
- QNAP Systems Inc. QuTScloud
- qnap qts
- qnap quts_hero
- qnap qutscloud
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
qnap.com
/en/security-advisory/qsa-23-33
vendor-advisory
Sources
- CVE List CVE-2023-39303
- NVD CVE-2023-39303
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