CVE-2023-51366
CVE-2023-51366 is a high-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 8.7)
- EPSS exploit prediction: 0% (37th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-56087
- Weakness: CWE-22
- Affected product: Qnap Qts
- Published:
- Last modified:
Description
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later
Frequently asked questions
- What is CVE-2023-51366?
- A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later
- How severe is CVE-2023-51366?
- CVE-2023-51366 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2023-51366 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-51366?
- CVE-2023-51366 primarily affects Qnap Qts. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-51366?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2023-51366 have an EU (EUVD) identifier?
- Yes. CVE-2023-51366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56087.
- When was CVE-2023-51366 published?
- CVE-2023-51366 was published on 2024-09-06 and last updated on 2026-06-17.
References
Affected products (21)
- cpe:2.3:o:qnap:qts:5.1.0.2348:build_20230325:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.0.2399:build_20230515:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.0.2418:build_20230603:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.0.2444:build_20230629:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.0.2466:build_20230721:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.1.2491:build_20230815:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.2.2533:build_20230926:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.3.2578:build_20231110:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.4.2596:build_20231128:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.5.2645:build_20240116:*:*:*:*:*:*
- cpe:2.3:o:qnap:qts:5.1.5.2679:build_20240219:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.0.2409:build_20230525:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.0.2424:build_20230609:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.0.2453:build_20230708:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.0.2466:build_20230721:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.1.2488:build_20230812:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.2.2534:build_20230927:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.3.2578:build_20231110:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.4.2596:build_20231128:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.5.2647:build_20240118:*:*:*:*:*:*
- cpe:2.3:o:qnap:quts_hero:h5.1.5.2680:build_20240220:*:*:*:*:*:*
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