CVE-2026-41039 Information Disclosure Vulnerability in Quantum Networks Router QN-I-470

High 8.7 Published Updated

Unauthenticated attackers can access sensitive internal information via exposed API endpoints on Quantum Networks routers due to improper access control.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-41039?

CVE-2026-41039 is a high-severity vulnerability in Quantum Networks Router QN-I-470, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-306

Which versions are affected by CVE-2026-41039?

It affects 1 product.

Products include Qntmnet Qn-I-470 Firmware.

How do I fix CVE-2026-41039?

No fix has been published for CVE-2026-41039 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-41039 being exploited?

There is no known exploitation of CVE-2026-41039 in the wild and no public exploit code.

Sources

Also known as GHSA-v758-4p42-wqcm.

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