CVE-2021-3054
Estado: ModificadaMedia (6.6)—
A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 6.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.92%
- Percentil entre todas las CVEs puntuadas: 59
- 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).
Tecnologías afectadas (1)
CWE
- CWE-367
- CWE-367
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-3054",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 8.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:S/C:C/I:C/A:C",
"authentication": "SINGLE",
"integrityImpact": "COMPLETE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@paloaltonetworks.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.6,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 0.7
}
]
},
"affected": [
{
"source": "psirt@paloaltonetworks.com",
"affectedData": [
{
"vendor": "Palo Alto Networks",
"product": "PAN-OS",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "8.1.20",
"status": "unaffected"
}
],
"version": "8.1",
"lessThan": "8.1.20",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "9.0.14",
"status": "unaffected"
}
],
"version": "9.0",
"lessThan": "9.0.14",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "10.0.7",
"status": "unaffected"
}
],
"version": "10.0",
"lessThan": "10.0.7",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "9.1.11",
"status": "unaffected"
}
],
"version": "9.1",
"lessThan": "9.1.11",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "10.1.2",
"status": "unaffected"
}
],
"version": "10.1",
"lessThan": "10.1.2",
"versionType": "custom"
}
]
}
]
}
],
"published": "2021-09-08T17:15:12.250",
"references": [
{
"url": "https://security.paloaltonetworks.com/CVE-2021-3054",
"tags": [
"Vendor Advisory"
],
"source": "psirt@paloaltonetworks.com"
},
{
"url": "https://security.paloaltonetworks.com/CVE-2021-3054",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@paloaltonetworks.com",
"description": [
{
"lang": "en",
"value": "CWE-367"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-367"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access."
},
{
"lang": "es",
"value": "Una vulnerabilidad de condición de carrera de tiempo de comprobación a tiempo de uso (TOCTOU) en la interfaz web de Palo Alto Networks PAN-OS permite a un administrador autenticado con permiso para cargar plugins ejecutar código arbitrario con privilegios de usuario root. Este problema afecta a: PAN-OS versión 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versión 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versión 9.1 anteriores a PAN-OS 9.1.11; PAN-OS versión 10.0 anteriores a PAN-OS 10.0.7; PAN-OS versión 10.1 anteriores a PAN-OS 10.1.2. Este problema no afecta a Prisma Access"
}
],
"lastModified": "2026-06-17T04:04:38.710",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "97BB12BB-096E-4CCD-B5F4-55900801DF74",
"versionEndExcluding": "8.1.20",
"versionStartIncluding": "8.1.0"
},
{
"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E9EE274A-3AF1-4204-B43D-1EA54C6442CC",
"versionEndExcluding": "9.0.14",
"versionStartIncluding": "9.0.0"
},
{
"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3725416F-6A77-40E2-91F3-3EDB9D6C9AC2",
"versionEndExcluding": "9.1.11",
"versionStartIncluding": "9.1.0"
},
{
"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3F183A33-114C-4A74-ACEF-51C176B3487F",
"versionEndExcluding": "10.0.7",
"versionStartIncluding": "10.0.0"
},
{
"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F4B8A5C9-0020-4099-A4FD-FAD558E20D22",
"versionEndExcluding": "10.1.2",
"versionStartIncluding": "10.1.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@paloaltonetworks.com"
}