CVE-2026-41037

Root access via unrestricted login attempts

Published Apr 21, 2026 · Updated Apr 21, 2026

Missing login throttling in Quantum Networks QNI470 6.1.1.B1 allows remote attackers to brute-force administrative credentials. The web management login accepts repeated failures without rate limiting or CAPTCHA protection, enabling unrestricted password guesses. Adjacent network access is required, and a successful guess grants root-level device administration.

CVSS severity8.7
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing login throttling in Quantum Networks QNI470 6.1.1.B1 allows remote attackers to brute-force administrative credentials. The web management login accepts repeated failures without rate limiting or CAPTCHA protection, enabling unrestricted password guesses. Adjacent network access is required, and a successful guess grants root-level device administration.

The record

CVE
CVE-2026-41037
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Quantum Networks
Product
QN-I-470
Classifications
CWE-307, T1110.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=at 6.1.1.B1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Quantum Networks · QN-I-470version=at 6.1.1.B1

Published CVSS scores

8.8National Vulnerability DatabaseCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.7Indian Computer Emergency Response Team (CERT-In)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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110.001Brute Force: Password Guessing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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