CVE-2023-49646
Full vulnerability record from the local CVENow database.
Description
Improper authentication in some Zoom clients before version 5.16.5 may allow an authenticated user to conduct a denial of service via network access.
Severity
MEDIUM
CVSS score
6.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2023-12-13 23:15:08.357000
Last modified
2026-11-02 23:17:18.093000
View original CVE JSON
{
"id": "CVE-2023-49646",
"sourceIdentifier": "[email protected]",
"published": "2023-12-13T23:15:08.357",
"lastModified": "2026-11-02T23:17:18.093",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper authentication in some Zoom clients before version 5.16.5 may allow an authenticated user to conduct a denial of service via network access."
},
{
"lang": "es",
"value": "La autenticación incorrecta en Zoom clients anteriores a la versión 5.16.5 puede permitir que un usuario autenticado realice una denegación de servicio a través del acceso a la red."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Zoom Video Communications, Inc.",
"product": "Zoom Clients",
"defaultStatus": "unaffected",
"platforms": [
"Windows",
"MacOS",
"Linux",
"iOS",
"Android"
],
"versions": [
{
"version": "See references",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 3.1,
"impactScore": 2.7
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-02T22:41:14.131531Z",
"id": "CVE-2023-49646",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-347"
}
]
},
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-287"
}
]
}
],
"configurations": [
{
"nodes": [
{
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"negate": false,
"cpeMatch": [
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"matchCriteriaId": "0105F955-25C8-4582-BD05-8BCD48BFF3D6"
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],
"references": [
{
"url": "https://www.zoom.com/en/trust/security-bulletin/ZSB-23062/",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://www.zoom.com/en/trust/security-bulletin/ZSB-23062/",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
]
}
]
}