CVE-2021-1489
A vulnerability in filesystem usage management for Cisco Firepower Device Manager (FDM) Software could allow an authenticated, remote attacker to exhaust filesystem resources, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to the insufficient management of available filesystem resources. An attacker could exploit this vulnerability by uploading files to the device and exhausting available filesystem resources. A successful exploit could allow the attacker to cause database errors and cause the device to become unresponsive to web-based management. Manual intervention is required to free filesystem resources and return the device to an operational state.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.18%
- Percentil entre todas las CVEs puntuadas: 67
- 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 (1)
CWE
- CWE-400
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-1489",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-1489",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-11-08T20:44:33.506976Z"
}
}
],
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 6.8,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:C",
"authentication": "SINGLE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 6.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 4.9,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.2
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Firepower Threat Defense Software",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-04-29T18:15:09.347",
"references": [
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-dos-nFES8xTN",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-dos-nFES8xTN",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-400"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in filesystem usage management for Cisco Firepower Device Manager (FDM) Software could allow an authenticated, remote attacker to exhaust filesystem resources, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to the insufficient management of available filesystem resources. An attacker could exploit this vulnerability by uploading files to the device and exhausting available filesystem resources. A successful exploit could allow the attacker to cause database errors and cause the device to become unresponsive to web-based management. Manual intervention is required to free filesystem resources and return the device to an operational state."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la administración del uso del sistema de archivos para el software Cisco Firepower Device Manager (FDM), podría permitir a un atacante remoto autenticado agotar los recursos del sistema de archivos, resultando en una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una administración insuficiente de los recursos del sistema de archivos disponibles. Un atacante podría explotar esta vulnerabilidad al cargar archivos en el dispositivo y agotando los recursos disponibles del sistema de archivos. Una explotación con éxito podría permitir al atacante causar errores en la base de datos y hacer que el dispositivo no responda a la administración basada en web. Es requerida una intervención manual para liberar recursos del sistema de archivos y devolver el dispositivo a un estado operativo"
}
],
"lastModified": "2026-06-17T03:31:53.737",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:firepower_device_manager:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "503C619B-EDF2-4BBC-B69F-81BEBE7512EB",
"versionEndExcluding": "6.4.0.12",
"versionStartIncluding": "6.4.0"
},
{
"criteria": "cpe:2.3:a:cisco:firepower_device_manager:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8F30FB86-2C39-44B8-BC3F-CCA8EE8A6A34",
"versionEndExcluding": "6.6.4",
"versionStartIncluding": "6.5.0"
},
{
"criteria": "cpe:2.3:a:cisco:firepower_device_manager:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "75A78041-BAEA-4023-8B2D-F9090435465B",
"versionEndExcluding": "6.7.0.2",
"versionStartIncluding": "6.7.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "7FFE3880-4B85-4E23-9836-70875D5109F7"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "727A02E8-40A1-4DFE-A3A2-91D628D3044F"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "19F6546E-28F4-40DC-97D6-E0E023FE939B"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EB3B0EC3-4654-4D90-9D41-7EC2AD1DDF99"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "52D96810-5F79-4A83-B8CA-D015790FCF72"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "16FE2945-4975-4003-AE48-7E134E167A7F"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DCE7122A-5AA7-4ECD-B024-E27C9D0CFB7B"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "976901BF-C52C-4F81-956A-711AF8A60140"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A0CBC7F5-7767-43B6-9384-BE143FCDBD7F"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "957D64EB-D60E-4775-B9A8-B21CA48ED3B1"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A694AD51-9008-4AE6-8240-98B17AB527EE"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "38AE6DC0-2B03-4D36-9856-42530312CC46"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "71DCEF22-ED20-4330-8502-EC2DD4C9838F"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3DB2822B-B752-4CD9-A178-934957E306B4"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "81F4868A-6D62-479C-9C19-F9AABDBB6B24"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "65378F3A-777C-4AE2-87FB-1E7402F9EA1B"
},
{
"criteria": "cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "07DAFDDA-718B-4B69-A524-B0CEB80FE960"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "psirt@cisco.com"
}