CVE-2026-20025
Estado: AnalizadaMedia (6.8)—
A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF secret key.
This vulnerability is due to insufficient input validation when processing OSPF link-state update (LSU) packets. An attacker could exploit this vulnerability by sending crafted OSPF LSU packets. A successful exploit could allow the attacker to corrupt the heap, causing the device to reload, resulting in a DoS condition.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Puntuación base: 6.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.17%
- Percentil entre todas las CVEs puntuadas: 6
- 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).
Tecnologías afectadas (2)
CWE
- CWE-190
Referencias
JSON original (NVD)
Mostrar
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"published": "2026-03-04T19:16:15.547",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ospf-ZH8PhbSW",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-190"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF secret key.\r\n\r This vulnerability is due to insufficient input validation when processing OSPF link-state update (LSU) packets. An attacker could exploit this vulnerability by sending crafted OSPF LSU packets. A successful exploit could allow the attacker to corrupt the heap, causing the device to reload, resulting in a DoS condition."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el protocolo OSPF de Cisco Secure Cortafuegos ASA Software y Cisco Secure FTD Software podría permitir a un atacante autenticado y adyacente causar que un dispositivo afectado se reinicie inesperadamente, lo que resultaría en una condición de DoS. Para explotar esta vulnerabilidad, el atacante debe tener la clave secreta de OSPF. Esta vulnerabilidad se debe a una validación de entrada insuficiente al procesar paquetes de actualización de estado de enlace (LSU) de OSPF. Un atacante podría explotar esta vulnerabilidad enviando paquetes LSU de OSPF manipulados. Un exploit exitoso podría permitir al atacante corromper el heap, causando que el dispositivo se reinicie, lo que resultaría en una condición de DoS."
}
],
"lastModified": "2026-08-11T19:40:47.230",
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