Buffer overflow in QNAP Qts
CVE-2023-51367
A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute code 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
Vulnerability class: Buffer Overflow
EPSS: 0.004 (31.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L.
Affected products
- Qnap Qts — versions 5.1.0.2348, 5.1.0.2399, 5.1.0.2418
- Qnap Quts_hero — versions h5.1.0.2409, h5.1.0.2424, h5.1.0.2453
- Qnap Systems Inc. Qts — versions 5.1.x
- Qnap Systems Inc. Quts Hero — versions h5.1.x
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@qnapsecurity.com.tw (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-51367?
- CVE-2023-51367 is a medium-severity vulnerability in QNAP Qts, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.4/10. Published 2024-09-06.
- How severe is CVE-2023-51367?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2023-51367 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.