CVE-2026-20316
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user. Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced. Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges.
Severity
MEDIUM
CVSS score
5.3
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-29 17:16:51.840000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
"id": "CVE-2026-20316",
"sourceIdentifier": "[email protected]",
"published": "2026-07-29T17:16:51.840",
"lastModified": "2026-10-24T13:10:00.147",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems.\r\n\r\nThis vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user. \r\nNote: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced. \r\nCisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la interfaz web del software Cisco Secure Firewall Management Center (FMC) podría permitir a un atacante remoto no autenticado iniciar sesión en un dispositivo afectado utilizando una cuenta de bajo privilegio para acceder a datos sensibles dentro de los sistemas impactados.\n\nEsta vulnerabilidad se debe a la presencia de credenciales de usuario estáticas para una cuenta de bajo privilegio. Un atacante podría explotar esta vulnerabilidad utilizando la cuenta para iniciar sesión en un sistema afectado. Un exploit exitoso podría permitir al atacante iniciar sesión en el sistema afectado y acceder a datos sensibles como el usuario de bajo privilegio.\nNota: Si la interfaz de gestión de FMC no tiene acceso público a internet, la superficie de ataque asociada con esta vulnerabilidad se reduce.\nCisco ha asignado a este aviso de seguridad una Calificación de Impacto de Seguridad (SIR) de Alta en lugar de Media, como indica la puntuación. La razón es que esta vulnerabilidad puede ser utilizada con otras vulnerabilidades del software Cisco Secure FMC para elevar privilegios."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Secure Firewall Management Center (FMC)",
"defaultStatus": "unknown",
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{
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{
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{
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{
"version": "7.0.8.1",
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"version": "7.2.10.2",
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"version": "7.4.2.4",
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"version": "7.4.3",
"status": "affected"
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"version": "7.6.3",
"status": "affected"
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{
"version": "7.7.11",
"status": "affected"
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{
"version": "7.6.4",
"status": "affected"
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"version": "10.0.0",
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}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-29T00:00:00+00:00",
"id": "CVE-2026-20316",
"options": [
{
"exploitation": "active"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"cisaExploitAdd": "2026-07-29",
"cisaActionDue": "2026-08-01",
"cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
"cisaVulnerabilityName": "Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability",
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-259"
}
]
}
],
"configurations": [
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"negate": false,
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"references": [
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"source": "[email protected]",
"tags": [
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{
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}