{"id": "CVE-2025-13943", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@zyxel.com.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-02-24T03:16:00.407", "references": [{"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026", "tags": ["Vendor Advisory"], "source": "security@zyxel.com.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through\u00a05.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device."}, {"lang": "es", "value": "Una vulnerabilidad de inyecci\u00f3n de comandos post-autenticaci\u00f3n en la funci\u00f3n de descarga de archivos de registro de las versiones de firmware Zyxel EX3301-T0 hasta 5.50(ABVY.7)C0 podr\u00eda permitir a un atacante autenticado ejecutar comandos del sistema operativo (SO) en un dispositivo afectado."}], "lastModified": "2026-02-25T18:13:55.097", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0EA00C9F-B69A-4D94-9778-9BAC1DE0857C", "versionEndExcluding": "5.63\\(acld.2.1\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:ee5301-00:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B28CD570-8DF0-428D-9EF6-87B05DD019D7"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "88483F35-88B4-4B81-B6F9-616A76D8FA28", "versionEndExcluding": "5.63\\(acmu.2.1\\)c0"}], "operator": "OR"}, {"negate": false, 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