CVE-2026-36959

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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:u-speed:n300_firmware:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "CA1BC4D0-0B7E-4D7B-86CF-BDAF840BE683", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:u-speed:n300:-:*:*:*:*:*:*:*", "matchCriteriaId": "9353B74A-54EE-47D6-AE12-294C0668DDCB", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "U-SPEED N300 router V1.0.0 does not implement rate limiting or account lockout protections on the /api/login endpoint. This allows an attacker on the local network to perform unlimited authentication attempts, enabling brute-force attacks against the administrator account and potential unauthorized access to the router management interface."}, {"lang": "es", "value": "El router U-SPEED N300 V1.0.0 no implementa limitaciones de velocidad ni protecciones de bloqueo de cuenta en el endpoint /api/login. Esto permite a un atacante en la red local realizar intentos de autenticaci\u00f3n ilimitados, lo que posibilita ataques de fuerza bruta contra la cuenta de administrador y un posible acceso no autorizado a la interfaz de gesti\u00f3n del router."}], "id": "CVE-2026-36959", "lastModified": "2026-11-08T16:10:00.183", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-36959", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-30T15:48:07.499941Z", "version": "2.0.3"}}]}, "published": "2026-04-30T15:16:23.077", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/kirubel-cve/CVE-2026-36959"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/kirubel-cve/CVE-2026-36959"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-307"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.0.0"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "n300_router", "vendor": "u-speed"}], "created": "2026-05-01T08:21:37.451571+00:00", "title": "Unrestricted Brute\u2011Force Login on U\u2011SPEED N300 Router", "updated": "2026-05-02T00:45:30.287060+00:00", "vendors": ["u-speed", "u-speed$PRODUCT$n300_router"]}