CVE-2021-34414
The network proxy page on the web portal for the Zoom on-premise Meeting Connector Controller before version 4.6.348.20201217, Zoom on-premise Meeting Connector MMR before version 4.6.348.20201217, Zoom on-premise Recording Connector before version 3.8.42.20200905, Zoom on-premise Virtual Room Connector before version 4.4.6620.20201110, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network proxy configuration, which could lead to remote command injection on the on-premise image by a web portal administrator.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.52%
- Percentil entre todas las CVEs puntuadas: 74
- 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 (4)
CWE
- CWE-20
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-34414",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
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"baseScore": 6.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
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}
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"cvssMetricV31": [
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"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,
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},
"affected": [
{
"source": "security@zoom.us",
"affectedData": [
{
"vendor": "n/a",
"product": "Zoom on-premise Meeting Connector Controller, Zoom on-premise Meeting Connector MMR, Zoom on-premise Recording Connector, Zoom on-premise Virtual Room Connector, Zoom on-premise Virtual Room Connector Load Balancer",
"versions": [
{
"status": "affected",
"version": "Zoom on-premise Meeting Connector Controller before version 4.6.348.20201217, Zoom on-premise Meeting Connector MMR before version 4.6.348.20201217, Zoom on-premise Recording Connector before version 3.8.42.20200905, Zoom on-premise Virtual Room Connector before version 4.4.6620.20201110, Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326"
}
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],
"published": "2021-09-27T14:15:08.350",
"references": [
{
"url": "https://explore.zoom.us/en/trust/security/security-bulletin/",
"tags": [
"Vendor Advisory"
],
"source": "security@zoom.us"
},
{
"url": "https://explore.zoom.us/en/trust/security/security-bulletin/",
"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
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"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
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],
"descriptions": [
{
"lang": "en",
"value": "The network proxy page on the web portal for the Zoom on-premise Meeting Connector Controller before version 4.6.348.20201217, Zoom on-premise Meeting Connector MMR before version 4.6.348.20201217, Zoom on-premise Recording Connector before version 3.8.42.20200905, Zoom on-premise Virtual Room Connector before version 4.4.6620.20201110, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network proxy configuration, which could lead to remote command injection on the on-premise image by a web portal administrator."
},
{
"lang": "es",
"value": "La página del proxy de red en el portal web para Zoom on-premise Meeting Connector Controller versiones anteriores a 4.6.348.20201217, Zoom on-premise Meeting Connector MMR versiones anteriores a 4.6.348.20201217, Zoom on-premise Recording Connector versiones anteriores a 3.8.42.20200905, Zoom on-premise Virtual Room Connector versiones anteriores a 4. 4.6620.20201110, y Zoom on-premise Virtual Room Connector Load Balancer versiones anteriores a 2.5.5495.20210326, no comprueba la entrada enviada en las peticiones para actualizar la configuración del proxy de red, lo que podría conllevar a una inyección de comandos remotos en la imagen on-premise por un administrador del portal web"
}
],
"lastModified": "2026-06-17T03:55:48.707",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:zoom:meeting_connector:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "4.6.348.20201217"
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"sourceIdentifier": "security@zoom.us"
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