CVE-2020-7469
Estado: ModificadaAlta (7.5)—
In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.22%
- Percentil entre todas las CVEs puntuadas: 68
- 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 (2)
CWE
- CWE-416
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-7469",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "secteam@freebsd.org",
"affectedData": [
{
"vendor": "n/a",
"product": "FreeBSD",
"versions": [
{
"status": "affected",
"version": "FreeBSD 12.2-RELEASE before p1, 12.1-RELEASE before p11, 11.4-RELEASE before p5"
}
]
}
]
}
],
"published": "2021-06-04T12:15:07.450",
"references": [
{
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc",
"tags": [
"Vendor Advisory"
],
"source": "secteam@freebsd.org"
},
{
"url": "https://security.netapp.com/advisory/ntap-20210720-0001/",
"tags": [
"Third Party Advisory"
],
"source": "secteam@freebsd.org"
},
{
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.netapp.com/advisory/ntap-20210720-0001/",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free."
},
{
"lang": "es",
"value": "En FreeBSD versiones 12.2-STABLE anteriores a r367402, versiones 11.4-STABLE anteriores a r368202, versiones 12.2-RELEASE anteriores a p1, versiones 12.1-RELEASE anteriores a p11 y versiones 11.4-RELEASE anteriores a p5, el manejador para una opción de enrutamiento almacena en caché un puntero en el búfer de paquetes que contiene el mensaje ICMPv6. Sin embargo, cuando se procesan opciones posteriores, el búfer de paquetes puede ser liberado, renderizando el puntero inválido en caché. La pila de la red puede luego desreferenciar el puntero, potencialmente desencadenando un uso de la memoria previamente liberada"
}
],
"lastModified": "2026-06-17T03:24:50.543",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4A865EA1-01D7-4E5A-9D13-80780F8A9D7A"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B80FBD1B-D03E-4408-9150-2F86FAF7F1D7"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9FCA6A72-2A72-45FD-A43D-B5BF7C329121"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "90F9B3CB-3B60-4AA8-9EAF-4F0BE7D27691"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C04EE177-C7D1-4049-B680-F961A27C677F"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "218AF216-7B03-4C02-B55F-2316AF14074B"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2B0FB7BE-DB4E-47CE-8B51-C43DC5AADD17"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0D427061-B399-47BA-865D-9FAB315210CF"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD730B6A-F123-4685-ACB3-4F20AAAB77F3"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p10:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0F0D6626-E7B8-4230-A66F-E4356B1729F3"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B5D692EF-A5D7-430E-91BA-4CD137343B66"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D50C60A7-4C9F-4636-92E9-9F5B8B01BE5B"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6C49F6C7-A740-42F4-93BB-512CBF334516"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "402740C4-5B55-423F-BAD2-F742E1E21ADC"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9DCAA10A-C612-45E0-84B7-55897F49D65E"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CB6258A5-8066-48B8-A417-09A1547DD57A"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6601C7C4-EC36-4EAA-90AC-D3156A2BF330"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EDCBC06C-B16B-498A-A99B-5F9F17C5FF03"
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1FE996B1-6951-4F85-AA58-B99A379D2163"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secteam@freebsd.org"
}