CVE-2021-38521
Estado: ModificadaAlta (7.2)—
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R6400 before 1.0.1.50, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75 before 1.0.1.62, and RAX80 before 1.0.1.62.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.87%
- Percentil entre todas las CVEs puntuadas: 58
- Fecha de la puntuación: 7/10/2026
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).
Tecnologías afectadas (5)
CWE
- CWE-77
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-38521",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 6.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "cve@mitre.org",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.1,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.5,
"exploitabilityScore": 0.6
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-08-11T00:15:50.117",
"references": [
{
"url": "https://kb.netgear.com/000063764/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2018-0566",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://kb.netgear.com/000063764/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2018-0566",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-77"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R6400 before 1.0.1.50, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75 before 1.0.1.62, and RAX80 before 1.0.1.62."
},
{
"lang": "es",
"value": "Determinados dispositivos NETGEAR están afectados por una inyección de comandos por un usuario autenticado. Esto afecta a R6400 versiones anteriores a 1.0.1.50, R7900P versiones anteriores a 1.4.1.50, R8000P versiones anteriores a 1.4.1.50, RAX75 versiones anteriores a 1.0.1.62 y RAX80 versiones anteriores a 1.0.1.62"
}
],
"lastModified": "2026-06-17T04:02:17.007",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "27C41AA7-C24A-49C6-98D9-B1CB2173705F",
"versionEndExcluding": "1.0.1.50"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:r6400:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3E4CDF6B-3829-44D0-9675-71D7BE83CAA2"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8B02CB0A-BBB8-4A64-93B3-7CA1DF7B7299",
"versionEndExcluding": "1.4.1.50"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:r7900p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F3D6A70D-66AF-4064-9F1B-4358D4B1F016"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9D3F1622-F2B7-41F0-87F0-61F4ACB270C8",
"versionEndExcluding": "1.4.1.50"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:r8000p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F7EF872D-2537-4FEB-8799-499FC9D44339"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F983714B-3EAA-4FFF-830D-A5F42EFCCF40",
"versionEndExcluding": "1.0.1.62"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:rax75:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1BAA74D7-36A1-4494-96A2-BD0D2D6BF22F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16A13773-997C-4B6D-8E25-6B30CA70B682",
"versionEndExcluding": "1.0.1.62"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:rax80:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "06B5A85C-3588-4263-B9AD-4E56D3F6CB16"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}