{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-13943", "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f", "state": "PUBLISHED", "assignerShortName": "Zyxel", "dateReserved": "2025-12-03T05:34:37.708Z", "datePublished": "2026-02-24T02:38:05.388Z", "dateUpdated": "2026-02-24T02:38:05.388Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "EX3301-T0 firmware", "vendor": "Zyxel", "versions": [{"status": "affected", "version": "<= 5.50(ABVY.7)C0"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through&nbsp;5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device."}], "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f", "shortName": "Zyxel", "dateUpdated": "2026-02-24T02:38:05.388Z"}, "references": [{"tags": ["vendor-advisory"], "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"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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{"cveTags": [], "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."}], "id": "CVE-2025-13943", "lastModified": "2026-02-24T03:16:00.407", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@zyxel.com.tw", "type": "Primary"}]}, "published": "2026-02-24T03:16:00.407", "references": [{"source": "security@zyxel.com.tw", "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"}], "sourceIdentifier": "security@zyxel.com.tw", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security@zyxel.com.tw", "type": "Primary"}]}

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