Auth bypass in QNAP Qts
CVE-2023-50363
An incorrect authorization vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to bypass intended access restrictions 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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (33.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
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
- www.qnap.com/en/security-advisory/qsa-24-20 (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-50363?
- CVE-2023-50363 is a high-severity vulnerability in QNAP Qts, classified under Improper Authorization. CVSS score: 7.4/10. Published 2024-04-26.
- How severe is CVE-2023-50363?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2023-50363 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.