CVE-2026-31027

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a3600r_firmware:5.9c.4959:*:*:*:*:*:*:*", "matchCriteriaId": "4C87B960-EFA4-440B-B1A6-B3FDE8A0BD3D", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a3600r:-:*:*:*:*:*:*:*", "matchCriteriaId": "F10B282D-E388-4A52-B7F8-D08C83CF0D62", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TOTOlink A3600R v5.9c.4959 contains a buffer overflow vulnerability in the setAppEasyWizardConfig interface of /lib/cste_modules/app.so. The vulnerability occurs because the rootSsid parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service."}, {"lang": "es", "value": "TOTOlink A3600R v5.9c.4959 contiene una vulnerabilidad de desbordamiento de b\u00fafer en la interfaz setAppEasyWizardConfig de /lib/cste_modules/app.so. La vulnerabilidad ocurre porque el par\u00e1metro rootSsid no se valida correctamente en cuanto a su longitud, permitiendo a atacantes remotos desencadenar un desbordamiento de b\u00fafer, lo que podr\u00eda llevar a la ejecuci\u00f3n de c\u00f3digo arbitrario o a una denegaci\u00f3n de servicio."}], "id": "CVE-2026-31027", "lastModified": "2026-11-11T19:10:00.360", "metrics": {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31027", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T18:22:17.011067Z", "version": "2.0.3"}}]}, "published": "2026-04-01T16:23:49.787", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/rootSsid-setAppEasyWizardConfig.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.9c.4959"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "a3600r", "vendor": "totolink"}], "created": "2026-04-02T07:51:15.525051+00:00", "updated": "2026-10-25T21:15:14.984928+00:00", "vendors": ["totolink", "totolink$PRODUCT$a3600r"]}