CVE-2024-40890
Estado: AnalizadaAlta (8.8)⚠ Explotación activa
**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the CGI program of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device by sending a crafted HTTP POST request.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 21%
- Percentil entre todas las CVEs puntuadas: 97
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CISA KEV — explotada activamente
- Añadida al catálogo: 11/2/2025
- Plazo de remediación: 4/3/2025
- Uso conocido en ransomware: Unknown
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 %
AV:N con PR:L indica explotación de servicio remoto autenticado (T1210). CWE-78 permite inyección de comandos del sistema (T1059.007) con certeza alta según descripción explícita.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (14)
Zyxel — Sbg3300-n000 FirmwareZyxel — Sbg3300-nb00 FirmwareZyxel — Sbg3500-n000 FirmwareZyxel — Sbg3500-nb00 FirmwareZyxel — Vmg1312-b10a FirmwareZyxel — Vmg1312-b10b FirmwareZyxel — Vmg1312-b10e FirmwareZyxel — Vmg3312-b10a FirmwareZyxel — Vmg3313-b10a FirmwareZyxel — Vmg3926-b10b FirmwareZyxel — Vmg4325-b10a FirmwareZyxel — Vmg4380-b10a FirmwareZyxel — Vmg8324-b10a FirmwareZyxel — Vmg8924-b10a Firmware
CWE
- CWE-78
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2024-40890",
"cveTags": [
{
"tags": [
"unsupported-when-assigned"
],
"sourceIdentifier": "security@zyxel.com.tw"
}
],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-40890",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "active"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-02-11T19:02:06.500220Z"
}
}
],
"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
}
]
},
"affected": [
{
"source": "security@zyxel.com.tw",
"affectedData": [
{
"vendor": "Zyxel",
"product": "VMG4325-B10A firmware",
"versions": [
{
"status": "affected",
"version": "<= 1.00(AAFR.4)C0_20170615"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2025-02-04T10:15:08.717",
"references": [
{
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025",
"tags": [
"Vendor Advisory"
],
"source": "security@zyxel.com.tw"
},
{
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40890",
"tags": [
"US Government Resource"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security@zyxel.com.tw",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "**UNSUPPORTED WHEN ASSIGNED**\nA post-authentication command injection vulnerability in the CGI program of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device by sending a crafted HTTP POST request."
},
{
"lang": "es",
"value": "**NO SOPORTADO CUANDO SE ASIGNÓ** Una vulnerabilidad de inyección de comando posterior a la autenticación en el programa CGI de la versión de firmware 1.00(AAFR.4)C0_20170615 del CPE DSL heredado Zyxel VMG4325-B10A podría permitir que un atacante autenticado ejecute comandos del sistema operativo (SO) en un dispositivo afectado mediante el envío de una solicitud HTTP POST manipulada."
}
],
"lastModified": "2026-06-17T07:46:48.077",
"cisaActionDue": "2025-03-04",
"cisaExploitAdd": "2025-02-11",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg1312-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E8CC0C61-EB6A-4736-80E3-B69693D4A2B1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg1312-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "7B6C4A31-3B83-444F-B5F8-1397B43B2211"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg1312-b10b_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8EF1C4A6-0305-4759-8DEC-92EB3D2915B1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg1312-b10b:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6B193DF7-5EE9-4A78-A01E-753463665627"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg1312-b10e_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2DF4827D-405E-4D21-A17E-A201EC6F79F3"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg1312-b10e:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "155187EA-4A46-4850-B983-BCE245D57777"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg3312-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E7AC711D-503A-48F9-A523-193F29B9DB22"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg3312-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "FFD9DF7D-E6E8-4261-8BD7-12A1AE8839BD"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg3313-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DDEC1767-C8D9-495F-B809-FCDB39DCF98B"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg3313-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "46446AE5-EBC1-4E4C-A30F-C610C3EB0975"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg3926-b10b_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7120E86-98DC-4824-BF59-02234501EA29"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg3926-b10b:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B1DAF061-1975-4A5B-8206-1E9836DBA1B0"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg4325-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B88B7A0D-D194-47D1-9D78-682EDFC52B52"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg4325-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "135700AF-7EC0-4E94-8552-B6F1038DE4A8"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg4380-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4808FDF8-4815-4C4F-AFE7-31EADE517B31"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg4380-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "88BA2BDF-9ACA-4F89-B7B7-FD232A6399CD"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg8324-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FF0AFA0F-D126-4D1C-89EC-878AB0F5E74C"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg8324-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "53C32749-82A6-42AA-9EBE-11014F161D2F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:vmg8924-b10a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "11BEC42C-7815-4EA3-B1E5-66E2443B5032"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:vmg8924-b10a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "96DC6BBF-15B8-496F-85FE-5373B6CEDC3C"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:sbg3300-n000_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "852E8F04-4C28-4904-AA4A-ACE4EAD6DC31"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:sbg3300-n000:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "902A735D-2D84-4183-B4B3-FA36AD9F13A5"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:sbg3300-nb00_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B338AE18-ECE4-4B90-A1D5-16F2983464E7"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:sbg3300-nb00:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E4658399-1699-4426-ACFF-BDEE20BF1A54"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2BC4B86C-ED2F-406D-BCAA-B970BAD248D8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2BC4B86C-ED2F-406D-BCAA-B970BAD248D8"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:sbg3500-nb00_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CD0DECE6-7AFC-4E86-9FFE-1215ECF8324D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:sbg3500-nb00:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "5185679F-9FBC-4B2E-AE79-1471EB56E46A"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "security@zyxel.com.tw",
"cisaRequiredAction": "The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.",
"cisaVulnerabilityName": "Zyxel DSL CPE OS Command Injection Vulnerability"
}