CVE-2021-22015
The vCenter Server contains multiple local privilege escalation vulnerabilities due to improper permissions of files and directories. An authenticated local user with non-administrative privilege may exploit these issues to elevate their privileges to root on vCenter Server Appliance.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.94%
- Percentil entre todas las CVEs puntuadas: 80
- Fecha de la puntuación: 7/10/2026
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).
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Módulo de Metasploit (exploit fiable y al alcance de cualquiera) · VMware vCenter vScalation Priv Esc
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
Tecnologías afectadas (2)
CWE
- CWE-552
Referencias
- http://packetstormsecurity.com/files/170116/VMware-vCenter-vScalation-Privilege-Escalation.html
- https://www.vmware.com/security/advisories/VMSA-2021-0020.html
- http://packetstormsecurity.com/files/170116/VMware-vCenter-vScalation-Privilege-Escalation.html
- https://www.vmware.com/security/advisories/VMSA-2021-0020.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-22015",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 7.2,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "security@vmware.com",
"affectedData": [
{
"vendor": "n/a",
"product": "VMware vCenter Server, VMware Cloud Foundation",
"versions": [
{
"status": "affected",
"version": "VMware vCenter Server(7.x before 7.0 U2c, 6.7 before 6.7 U3o and 6.5 before 6.5 U3q) and VMware Cloud Foundation (4.x before 4.3 and 3.x before 3.10.2.2)"
}
]
}
]
}
],
"published": "2021-09-23T13:15:07.827",
"references": [
{
"url": "http://packetstormsecurity.com/files/170116/VMware-vCenter-vScalation-Privilege-Escalation.html",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "security@vmware.com"
},
{
"url": "https://www.vmware.com/security/advisories/VMSA-2021-0020.html",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "security@vmware.com"
},
{
"url": "http://packetstormsecurity.com/files/170116/VMware-vCenter-vScalation-Privilege-Escalation.html",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.vmware.com/security/advisories/VMSA-2021-0020.html",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-552"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The vCenter Server contains multiple local privilege escalation vulnerabilities due to improper permissions of files and directories. An authenticated local user with non-administrative privilege may exploit these issues to elevate their privileges to root on vCenter Server Appliance."
},
{
"lang": "es",
"value": "vCenter Server contiene múltiples vulnerabilidades de escalada de privilegios locales debido a permisos inapropiados de archivos y directorios. Un usuario local autenticado con privilegios no administrativos puede explotar estos problemas para elevar sus privilegios a root en vCenter Server Appliance"
}
],
"lastModified": "2026-06-17T03:36:33.477",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5071E0B4-FE4B-4525-BAF6-3900D9C8D48D",
"versionEndExcluding": "5.0",
"versionStartIncluding": "3.0"
},
{
"criteria": "cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "23CFE5A5-A166-4FD5-BE97-5F16DAB1EAE0"
},
{
"criteria": "cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E456F84C-A86E-4EA9-9A3E-BEEA662136E6"
},
{
"criteria": "cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5FA81CCD-A05E-498C-820E-21980E92132F"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@vmware.com"
}