CVE-2026-66154
Full vulnerability record from the local CVENow database.
Description
An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes.
Severity
HIGH
CVSS score
8.3
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-08-11 21:17:49.600000
Last modified
2026-10-24 16:10:00.153000
View original CVE JSON
{
"id": "CVE-2026-66154",
"sourceIdentifier": "[email protected]",
"published": "2026-08-11T21:17:49.600",
"lastModified": "2026-10-24T16:10:00.153",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes."
},
{
"lang": "es",
"value": "Una validación de certificado insuficiente en un flujo de trabajo de comunicación privilegiada fue identificada en una aplicación GMS 9.5.1 (Build 9510.1044) y versiones anteriores que, bajo un ataque MitM exitoso y condiciones de red controladas, podría permitir cambios no autorizados."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "SonicWall",
"product": "GMS",
"defaultStatus": "unknown",
"platforms": [
"Linux"
],
"versions": [
{
"version": "9.5.1 and earlier versions",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.6,
"impactScore": 6.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-12T04:00:37.248025Z",
"id": "CVE-2026-66154",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-295"
}
]
}
],
"references": [
{
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011",
"source": "[email protected]"
}
]
}