How severe is CVE-2026-41039?

CVE-2026-41039 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-41039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41039?

CVE-2026-41039 affects Qntmnet Qn-i-470 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41039?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41039 have an EU (EUVD) identifier?

Yes. CVE-2026-41039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24084.

When was CVE-2026-41039 published?

CVE-2026-41039 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2026-41039

CVE-2026-41039 is a high-severity vulnerability in Qntmnet Qn-i-470 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24084
Weakness: CWE-306
Affected product: Qntmnet Qn-i-470 Firmware
Published: 2026-04-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-41039?: CVE-2026-41039 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-41039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41039?: CVE-2026-41039 affects Qntmnet Qn-i-470 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41039?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41039 have an EU (EUVD) identifier?: Yes. CVE-2026-41039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24084.
When was CVE-2026-41039 published?: CVE-2026-41039 was published on 2026-04-21 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:o:qntmnet:qn-i-470_firmware:6.1.1.b1:*:*:*:*:*:*:*

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