CVE-2026-20013
Estado: AnalizadaMedia (5.8)—
A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.
This vulnerability is due to memory exhaustion caused by not freeing memory during IKEv2 packet processing. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust resources, causing a DoS condition that will eventually require the device to manually reload.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
- Puntuación base: 5.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.31%
- Percentil entre todas las CVEs puntuadas: 22
- 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-401
Referencias
JSON original (NVD)
Mostrar
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"published": "2026-03-04T18:16:15.113",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.\r\n\r This vulnerability is due to memory exhaustion caused by not freeing memory during IKEv2 packet processing. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust resources, causing a DoS condition that will eventually require the device to manually reload."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la característica IKEv2 de Cisco Secure Cortafuegos ASA Software y Cisco Secure FTD Software podría permitir a un atacante remoto no autenticado causar una condición DoS en un dispositivo afectado que también podría impactar la disponibilidad de los servicios a dispositivos en otras partes de la red. Esta vulnerabilidad se debe al agotamiento de la memoria causado por no liberar memoria durante el procesamiento de paquetes IKEv2. Un atacante podría explotar esta vulnerabilidad enviando paquetes IKEv2 manipulados a un dispositivo afectado. Un exploit exitoso podría permitir al atacante agotar los recursos, causando una condición DoS que eventualmente requerirá que el dispositivo se reinicie manualmente."
}
],
"lastModified": "2026-08-11T19:40:47.230",
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