CVE-2020-5357
Dell Dock Firmware Update Utilities for Dell Client Consumer and Commercial docking stations contain an Arbitrary File Overwrite vulnerability. The vulnerability is limited to the Dell Dock Firmware Update Utilities during the time window while being executed by an administrator. During this time window, a locally authenticated low-privileged malicious user could exploit this vulnerability by tricking an administrator into overwriting arbitrary files via a symlink attack. The vulnerability does not affect the actual binary payload that the update utility delivers.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H
- Puntuación base: 6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.26%
- Percentil entre todas las CVEs puntuadas: 17
- 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 (4)
CWE
- CWE-427
- CWE-427
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-5357",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 2.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:H/Au:N/C:N/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "HIGH",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 1.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security_alert@emc.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 0.8
}
]
},
"affected": [
{
"source": "security_alert@emc.com",
"affectedData": [
{
"vendor": "Dell",
"product": "CPG BIOS",
"versions": [
{
"status": "affected",
"version": "unspecified",
"lessThan": "1.0.8",
"versionType": "custom"
}
]
}
]
}
],
"published": "2020-05-28T20:15:12.037",
"references": [
{
"url": "https://www.dell.com/support/article/SLN321564",
"tags": [
"Vendor Advisory"
],
"source": "security_alert@emc.com"
},
{
"url": "https://www.dell.com/support/article/SLN321564",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "security_alert@emc.com",
"description": [
{
"lang": "en",
"value": "CWE-427"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-427"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dell Dock Firmware Update Utilities for Dell Client Consumer and Commercial docking stations contain an Arbitrary File Overwrite vulnerability. The vulnerability is limited to the Dell Dock Firmware Update Utilities during the time window while being executed by an administrator. During this time window, a locally authenticated low-privileged malicious user could exploit this vulnerability by tricking an administrator into overwriting arbitrary files via a symlink attack. The vulnerability does not affect the actual binary payload that the update utility delivers."
},
{
"lang": "es",
"value": "La Utilidades de Actualización de Firmware de Dell Dock para las estaciones de acoplamiento de Dell Client Consumer and Commercial, contiene una vulnerabilidad de Sobrescritura de Archivos Arbitrarios. La vulnerabilidad es limitada a las Utilidades de Actualización de Firmware de Dell Dock durante el intervalo de tiempo mientras es ejecutado por un administrador. Durante este período de tiempo, un usuario malicioso poco privilegiado autenticado localmente podría explotar esta vulnerabilidad al engañar a un administrador para que sobrescriba archivos arbitrarios por medio de un ataque de tipo symlink. La vulnerabilidad no afecta la carga útil binaria real que entrega la utilidad de actualización."
}
],
"lastModified": "2026-06-17T03:21:20.370",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dell:dock_wd15_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1CD21A72-B8F5-4C91-9584-40D304D32B50",
"versionEndExcluding": "1.0.8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dell:dock_wd15:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F66DCD8A-17AA-4DB7-9AD1-46E04916EE66"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dell:dock_wd19_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BB96E94D-3CE3-4170-90A8-BCFBC86F6537",
"versionEndExcluding": "1.0.14"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dell:dock_wd19:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "15124DF5-16F4-45FD-94CB-9DBBDA9D7944"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dell:thunderbolt_dock_tb16_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E468B103-F8CD-4C0B-B357-10421B9DDE59",
"versionEndExcluding": "1.0.4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dell:thunderbolt_dock_tb16:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "599DAEAA-C0D1-4242-8386-4629B92473A7"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dell:precision_dual_usb-c_thunderbolt_dock_-_tb18dc_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1B36DE56-0FF4-42B2-BE19-FC30EE2BD139",
"versionEndExcluding": "1.0.10"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dell:precision_dual_usb-c_thunderbolt_dock_-_tb18dc:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E37E5FD4-FDD4-4025-8025-E5785177A92C"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "security_alert@emc.com"
}