CVE-2018-1000117
Estado: ModificadaMedia (6.7)—
Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 6.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.04%
- Percentil entre todas las CVEs puntuadas: 63
- 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-120
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2018-1000117",
"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": 6.7,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/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": 0.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2018-03-07T14:29:00.280",
"references": [
{
"url": "https://bugs.python.org/issue33001",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/python/cpython/pull/5989",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://bugs.python.org/issue33001",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/python/cpython/pull/5989",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5."
},
{
"lang": "es",
"value": "Python Software Foundation CPython, desde la versión 3.2 hasta la 3.6.4 en Windows, contiene una vulnerabilidad de desbordamiento de búfer en la función os.symlink() de Windows que puede resultar en la ejecución de código arbitrario y en un escalado de privilegios. El ataque parece ser explotable mediante un script de python que crea un symlink con un nombre o ubicación controlado por un atacante. La vulnerabilidad parece haber sido solucionada en las versiones 3.7.0 y 3.6.5."
}
],
"lastModified": "2026-06-17T01:32:27.763",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C7B9CFAC-B5D1-4A16-A311-42487E31655D",
"versionEndExcluding": "3.4.9",
"versionStartIncluding": "3.2.0"
},
{
"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D1AAA7FB-F42F-480D-9549-EF8543876AFA",
"versionEndExcluding": "3.5.6",
"versionStartIncluding": "3.5.0"
},
{
"criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A9862179-5DDB-4B35-A010-D6DEDCACAA5F",
"versionEndExcluding": "3.6.5",
"versionStartIncluding": "3.6.0"
},
{
"criteria": "cpe:2.3:a:python:python:3.7.0:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A7E7890-36B8-4259-AC7B-19FEADC23ADD"
},
{
"criteria": "cpe:2.3:a:python:python:3.7.0:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "573E7CAE-9884-44F1-8A3A-54081DB63618"
},
{
"criteria": "cpe:2.3:a:python:python:3.7.0:beta3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "819DE67C-A7A6-46DE-A41F-7B7F805944A3"
},
{
"criteria": "cpe:2.3:a:python:python:3.7.0:beta4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BE8DDDF3-2695-493C-A21F-691ECD91EE79"
},
{
"criteria": "cpe:2.3:a:python:python:3.7.0:beta5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C45769F8-486F-4041-B059-7B0DD16F2E74"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2CF61F35-5905-4BA9-AD7E-7DB261D2F256"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}