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Vulnerability record · CVE-2026-41037 · published 21 April 2026

CVE-2026-41037: Qntmnet qn-i-470 firmware improper restriction of authentication attempts vulnerability

Qntmnet · Qn I 470 Firmware

This vulnerability exists in Quantum Networks router due to missing rate limiting and CAPTCHA protection for failed login attempts in the web-based management interface. An attacker on the same network could exploit this vulnerability by performing brute force attacks against administrative credentials, leading to unauthorized access with root privileges on the targeted device.

8.7 CVSS 4.0 High EPSS 0.32% · top 77.2% CWE-307 · Improper restriction of authentication attempts
8.7CVSS 4.0 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

This vulnerability exists in Quantum Networks router due to missing rate limiting and CAPTCHA protection for failed login attempts in the web-based management interface. An attacker on the same network could exploit this vulnerability by performing brute force attacks against administrative credentials, leading to unauthorized access with root privileges on the targeted device.

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2026-0200 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-41039Qntmnet qn-i-470 firmware missing authentication for critical function vulnerabilityThis vulnerability exists in Quantum Networks router due to improper access control and insecure default configuration in the web-based management in…EPSS 0.45%8.7CVE-2026-41036Qntmnet qn-i-470 firmware os command injection vulnerabilityThis vulnerability exists in Quantum Networks router due to inadequate sanitization of user-supplied input in the management CLI interface. An authen…EPSS 0.81%7.6CVE-2026-41038Qntmnet qn-i-470 firmware weak password requirements vulnerabilityThis vulnerability exists in Quantum Networks router due to lack of enforcement of strong password policies in the web-based management interface. An…EPSS 0.28%

Source: NIST National Vulnerability Database (record CVE-2026-41037), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.