Auth bypass in Qntmnet Qn-I-470
CVE-2026-41039
This vulnerability exists in Quantum Networks router due to improper access control and insecure default configuration in the web-based management interface. An unauthenticated attacker could exploit this vulnerability by accessing exposed API endpoints on the targeted device. Successful exploitation of this vulnerability could allow the attacker to access sensitive information, including internal endpoints, scripts and directories on the targeted device.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Qntmnet Qn-I-470
- Qntmnet Qn-I-470 Firmware — versions 6.1.1.b1
- Quantum Networks Router Qn-I-470 — versions at 6.1.1.B1
Weakness classification (CWE)
References
- www.cert-in.org.in/s2cMainServlet (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41039?
- CVE-2026-41039 is a high-severity vulnerability in Qntmnet Qn-I-470, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-04-21.
- How severe is CVE-2026-41039?
- High severity. CVSS v3 base score is 7.5 out of 10.