CVE-2024-20313
Estado: ModificadaAlta (7.4)—
A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Puntuación base: 7.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.26%
- Percentil entre todas las CVEs puntuadas: 16
- 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 (1)
CWE
- CWE-120
- CWE-120
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2024-20313",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-20313",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-08-09T18:33:53.340440Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.4,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 4,
"exploitabilityScore": 2.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.4,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 4,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco IOS XE Software",
"versions": [
{
"status": "affected",
"version": "17.5.1"
},
{
"status": "affected",
"version": "17.5.1a"
},
{
"status": "affected",
"version": "17.6.1"
},
{
"status": "affected",
"version": "17.6.2"
},
{
"status": "affected",
"version": "17.6.1w"
},
{
"status": "affected",
"version": "17.6.1a"
},
{
"status": "affected",
"version": "17.6.1x"
},
{
"status": "affected",
"version": "17.6.3"
},
{
"status": "affected",
"version": "17.6.1y"
},
{
"status": "affected",
"version": "17.6.1z"
},
{
"status": "affected",
"version": "17.6.3a"
},
{
"status": "affected",
"version": "17.6.4"
},
{
"status": "affected",
"version": "17.6.1z1"
},
{
"status": "affected",
"version": "17.6.5"
},
{
"status": "affected",
"version": "17.6.5a"
},
{
"status": "affected",
"version": "17.7.1"
},
{
"status": "affected",
"version": "17.7.1a"
},
{
"status": "affected",
"version": "17.7.1b"
},
{
"status": "affected",
"version": "17.7.2"
},
{
"status": "affected",
"version": "17.10.1"
},
{
"status": "affected",
"version": "17.10.1a"
},
{
"status": "affected",
"version": "17.10.1b"
},
{
"status": "affected",
"version": "17.8.1"
},
{
"status": "affected",
"version": "17.8.1a"
},
{
"status": "affected",
"version": "17.9.1"
},
{
"status": "affected",
"version": "17.9.1w"
},
{
"status": "affected",
"version": "17.9.2"
},
{
"status": "affected",
"version": "17.9.1a"
},
{
"status": "affected",
"version": "17.9.1x"
},
{
"status": "affected",
"version": "17.9.1y"
},
{
"status": "affected",
"version": "17.9.3"
},
{
"status": "affected",
"version": "17.9.2a"
},
{
"status": "affected",
"version": "17.9.1x1"
},
{
"status": "affected",
"version": "17.9.3a"
},
{
"status": "affected",
"version": "17.9.1y1"
},
{
"status": "affected",
"version": "17.11.1"
},
{
"status": "affected",
"version": "17.11.1a"
},
{
"status": "affected",
"version": "17.11.99SW"
}
]
}
]
}
],
"published": "2024-04-24T21:15:46.797",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la característica OSPF versión 2 (OSPFv2) del software Cisco IOS XE podría permitir que un atacante adyacente no autenticado provoque que un dispositivo afectado se recargue inesperadamente, lo que resultaría en una condición de denegación de servicio (DoS). Esta vulnerabilidad se debe a una validación inadecuada de las actualizaciones OSPF procesadas por un dispositivo. Un atacante podría aprovechar esta vulnerabilidad enviando una actualización OSPF con formato incorrecto al dispositivo. Un exploit exitoso podría permitir al atacante hacer que el dispositivo afectado se recargue, lo que resultaría en una condición DoS."
}
],
"lastModified": "2026-06-17T07:06:23.970",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "938B0720-8CA7-43BA-9708-5CE9EC7A565A"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.5.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D4BE7166-DBD3-4CE6-A14A-725FE896B85E"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4DE62C4B-7C06-4907-BADE-416C1618D2D9"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0C60DF3F-DBD9-4BBF-812E-4BB0C47BDF3C"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1w:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "26FEE2E2-DD85-4006-8895-0BDA04E8EE4C"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1x:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A0CD237B-2843-4D37-87D7-AE6D1A53458A"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1y:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1B80614B-6362-45F0-B305-2F137B053DCF"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1z:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "47B20C7E-1C9C-4EF4-91E4-388643C4B9C0"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.1z1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EB7966A0-D84D-47F7-AED9-D041BCDA6703"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "04D19D8C-FACF-49B4-BA99-CC3A3FDADAFB"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0B78942C-BEE1-4D18-9075-8E1D991BF621"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.3a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5B306D35-4A13-4D23-8EC2-D000E8ADCDA5"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9F21093D-1036-4F6B-B90F-ACE1EF99EA33"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "280D24C6-A2BF-46E8-B512-6A3FA7833922"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.6.5a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1F903F51-ABF4-49B0-A5BA-A6B51F79666F"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.7.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "38B87B17-C653-40AC-8AE4-066BB1123C88"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.7.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9012A66E-82C4-4ACF-A4BB-37EC54B87B50"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.7.1b:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9C945710-7DC3-43D9-9FBE-F2A1B8666C73"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.7.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "849C6FF1-F7C0-4021-BCA2-A791C87E4F37"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.8.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7592C7E3-3735-425F-A276-9EE03224CD5E"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.8.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1103BE75-EB64-4A9A-801E-EDE6A1F861F5"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5B0C2129-8149-4362-827C-A5494C9D398B"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7452C7E9-6241-42C5-9A7F-13C0BD38A2B4"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1w:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "38C48FC4-5362-4B61-8B8C-7CAFFB81045E"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1x:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2BC43383-DF99-4D38-A220-0A202623B36A"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1x1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B7E6CD08-EC7E-42C1-B2C2-CA5E154545A0"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1y:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DE62DC68-E882-49E7-AAD2-2F73637FFB4A"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.1y1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "57CD29C9-C629-48B0-ABDD-CEC3DEB6FB11"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D197445E-EC12-429C-BDD4-F63FA5C1B3E3"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.2a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD27DF50-9E81-4EC5-BA73-513F1DFB972C"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "51EA3EAA-A379-467E-AF9A-FCFBACAE49C7"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.9.3a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4FC63AAF-758F-4A70-9738-96E75A0A1DDA"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.10.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "42FAEC29-D754-49D6-85F1-F5DDFAF6E80F"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.10.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CCE76032-948F-444F-BA5D-72A34D1CD382"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.10.1b:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9A965A2A-129C-45C3-BCB1-2860F583D020"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.11.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F313F2EC-F3D6-4639-934C-402DDA3DA806"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.11.1a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4AFB2CA6-8332-4E4D-BDB4-C3B770D3AD6C"
},
{
"criteria": "cpe:2.3:o:cisco:ios_xe:17.11.99sw:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6F7C157F-5569-4072-805F-7AF598F6B56F"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@cisco.com"
}