CVE-2026-41039 | Quantum Router QN-I-470 6.1.1.B1 API Endpoint missing authentication (CIVN-2026-0200)

VDB-358432 · CVE-2026-41039 · CIVN-2026-0200 QUANTUM ROUTER QN-I-470 6.1.1.B1 API ENDPOINT MISSING AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 1.84+ Summaryinfo A vulnerability was found in Quantum Router QN-I-470 6.1.1.B1 and classified as critical. This affects an unknown function of the component API Endpoint. Executing a manipulation can lead to missing authentication. This vulnerability is tracked as CVE-2026-41039. The attack can be launched remotely. No exploit exists. Detailsinfo A vulnerability was found in Quantum Router QN-I-470 6.1.1.B1. It has been declared as critical. This vulnerability affects an unknown code of the component API Endpoint. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality. CVE summarizes: 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. The weakness was disclosed by Rakesh Elamaran, Joel William A, Bajino Viju, Stalin S, Janish Andrin J and Kalpana B N. as CIVN-2026-0200. The advisory is shared for download at cert-in.org.in. This vulnerability was named CVE-2026-41039 since 04/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/21/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Router Operating System Vendor Quantum Name Router QN-I-470 Version 6.1.1.B1 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing authentication CWE: CWE-306 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/16/2026 CVE reserved 04/21/2026 +5 days Advisory disclosed 04/21/2026 +0 days VulDB entry created 04/21/2026 +0 days VulDB entry last update Sourcesinfo Advisory: CIVN-2026-0200 Researcher: Rakesh Elamaran, Joel William A, Bajino Viju, Stalin S, Janish Andrin J, Kalpana B N. Status: Not defined CVE: CVE-2026-41039 (🔒) GCVE (CVE): GCVE-0-2026-41039 GCVE (VulDB): GCVE-100-358432 Entryinfo Created: 04/21/2026 13:16 Changes: 04/21/2026 13:16 (68) Complete: 🔍 Cache ID: 99:B03:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸