CVE-2023-27992

{"id": "CVE-2023-27992", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2023-06-19T12:15:09.433", "references": [{"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products", "tags": ["Patch", "Vendor Advisory"], "source": "[email protected]"}, {"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27992", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-78"}]}, {"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to\u00a0V5.21(AAZF.14)C0, NAS540 firmware versions prior to\u00a0V5.21(AATB.11)C0, and NAS542\u00a0firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request."}], "lastModified": "2025-10-27T17:05:04.283", "cisaActionDue": "2023-07-14", "cisaExploitAdd": "2023-06-23", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4A72863-E165-4A25-B53F-EE5F97236C5A", "versionEndExcluding": "5.21\\(aazf.14\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E0A01B19-4A91-4FBC-8447-2E854346DAC5"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas540_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E86737DF-B02E-484D-AFB8-00D4F3B15330", "versionEndExcluding": "5.21\\(aatb.11\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas540:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B2F7264C-D32A-4EE9-BADC-78518D762BCA"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB6182FF-5301-474F-B324-651208839B0F", "versionEndExcluding": "5.21\\(abag.11\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas542:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "31C4DD0F-28D0-4BF7-897B-5EEC32AA7277"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Zyxel Multiple NAS Devices Command Injection Vulnerability"}