CVE-2026-18686

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The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad fue detectada en GL.iNet GL-MT3000 hasta la versi\u00f3n 4.4.5. El elemento afectado es la funci\u00f3n nas-web.add_user del archivo /cgi-bin/glc del componente nas-web RPC Wrapper. Realizar una manipulaci\u00f3n conduce a una inyecci\u00f3n de comandos. El ataque puede iniciarse remotamente. El exploit ahora es p\u00fablico y puede ser utilizado. El proveedor fue contactado con antelaci\u00f3n sobre esta divulgaci\u00f3n y confirm\u00f3 la existencia de la vulnerabilidad."}], "id": "CVE-2026-18686", "lastModified": "2026-10-23T23:10:00.157", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18686", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-04T13:27:21.443352Z", "version": "2.0.3"}}]}, "published": "2026-08-04T00:16:40.520", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHARE"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-18686"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/856139"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/385612"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/385612/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.4.5"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "GL-MT3000", "source": "cna", "vendor": "GL.iNet"}, "product": "gl-mt3000", "vendor": "gl-inet"}], "created": "2026-08-04T03:00:02.503678+00:00", "updated": "2026-09-24T19:45:17.863677+00:00", "vendors": ["gl-inet", "gl-inet$PRODUCT$gl-mt3000"]}