CVE-2017-16024
Status: ModifiedMedium (6.5)—
The sync-exec module is used to simulate child_process.execSync in node versions <0.11.9. Sync-exec uses tmp directories as a buffer before returning values. Other users on the server have read access to the tmp directory, possibly allowing an attacker on the server to obtain confidential information from the buffer/tmp file, while it exists.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.56%
- Percentile among all scored CVEs: 85
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-377
- CWE-200
References
- https://cwe.mitre.org/data/definitions/377.html
- https://github.com/gvarsanyi/sync-exec/issues/17
- https://nodesecurity.io/advisories/310
- https://www.owasp.org/index.php/Insecure_Temporary_File
- https://cwe.mitre.org/data/definitions/377.html
- https://github.com/gvarsanyi/sync-exec/issues/17
- https://nodesecurity.io/advisories/310
- https://www.owasp.org/index.php/Insecure_Temporary_File
Raw JSON (NVD)
Show
{
"id": "CVE-2017-16024",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"authentication": "SINGLE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 6.5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "support@hackerone.com",
"affectedData": [
{
"vendor": "HackerOne",
"product": "sync-exec node module",
"versions": [
{
"status": "affected",
"version": "All versions"
}
]
}
]
}
],
"published": "2018-06-04T19:29:01.427",
"references": [
{
"url": "https://cwe.mitre.org/data/definitions/377.html",
"tags": [
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://github.com/gvarsanyi/sync-exec/issues/17",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://nodesecurity.io/advisories/310",
"tags": [
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://www.owasp.org/index.php/Insecure_Temporary_File",
"tags": [
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://cwe.mitre.org/data/definitions/377.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/gvarsanyi/sync-exec/issues/17",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://nodesecurity.io/advisories/310",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.owasp.org/index.php/Insecure_Temporary_File",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "support@hackerone.com",
"description": [
{
"lang": "en",
"value": "CWE-377"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-200"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The sync-exec module is used to simulate child_process.execSync in node versions <0.11.9. Sync-exec uses tmp directories as a buffer before returning values. Other users on the server have read access to the tmp directory, possibly allowing an attacker on the server to obtain confidential information from the buffer/tmp file, while it exists."
},
{
"lang": "es",
"value": "El módulo sync-exec se emplea para simular child_process.execSync en la versiones de node anteriores a la 0.11.9. Sync-exec emplea directorios tmp como búfer antes de devolver valores. Otros usuarios en el servidor tienen acceso de lectura al directorio tmp, lo que podría permitir que un atacante en el servidor obtenga información confidencial del archivo tmp/del búfer mientras existe."
}
],
"lastModified": "2026-06-17T01:08:39.633",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sync-exec_project:sync-exec:*:*:*:*:*:node.js:*:*",
"vulnerable": true,
"matchCriteriaId": "EFF1F70B-F9DC-479F-91BB-379EC093C7E9",
"versionEndIncluding": "0.6.2"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2709829F-CB8C-40A5-A703-FBB404507CD7",
"versionEndExcluding": "0.11.9"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "support@hackerone.com"
}