{ "id": "CVE-2023-22921", "sourceIdentifier": "security@zyxel.com.tw", "published": "2023-05-01T17:15:09.110", "lastModified": "2023-05-06T03:04:28.473", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to store malicious scripts using a web management interface parameter, resulting in denial-of-service (DoS) conditions on an affected device." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.7, "impactScore": 5.3 }, { "source": "security@zyxel.com.tw", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.7, "impactScore": 5.3 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-79" } ] }, { "source": "security@zyxel.com.tw", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-79" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:zyxel:nbg-418n_firmware:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.00\\(aarp.13\\)c0", "matchCriteriaId": "FF173A52-88FB-4D7A-A22B-8F016EE07E06" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:zyxel:nbg-418n:v2:*:*:*:*:*:*:*", "matchCriteriaId": "B864E108-4477-4D56-B635-95A4B5F86AE1" } ] } ] } ], "references": [ { "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nbg-418n-v2-home-router", "source": "security@zyxel.com.tw", "tags": [ "Patch", "Vendor Advisory" ] } ] }