CVE-2026-71407
Full vulnerability record from the local CVENow database.
Description
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-08-12 13:17:25.497000
Last modified
2026-10-24 15:10:00.190000
View original CVE JSON
{
"id": "CVE-2026-71407",
"sourceIdentifier": "[email protected]",
"published": "2026-08-12T13:17:25.497",
"lastModified": "2026-10-24T15:10:00.190",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled."
},
{
"lang": "es",
"value": "Una vulnerabilidad de desbordamiento de búfer basado en pila [CWE-121] en Fortinet FortiOS 7.6.1 hasta 7.6.6 puede permitir a un atacante no autenticado que puede eludir la protección de pila y ASLR ejecutar código o comandos arbitrarios en el contexto del demonio WAD a través de sockets manipulados, solo si el proxy explícito está configurado con autenticación Kerberos y SOCKS habilitado."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Fortinet",
"product": "FortiOS",
"defaultStatus": "unaffected",
"cpes": [
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],
"versions": [
{
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"versionType": "semver",
"status": "affected"
}
]
},
{
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},
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},
{
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},
{
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"status": "affected"
},
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},
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},
{
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},
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},
{
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}
]
},
{
"vendor": "Fortinet",
"product": "FortiProxy",
"defaultStatus": "unaffected",
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},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "RUGGEDCOM APE1808",
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}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"baseScore": 5.6,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
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},
{
"source": "[email protected]",
"type": "Primary",
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"ssvcData": {
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"id": "CVE-2026-71407",
"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-121"
}
]
}
],
"configurations": [
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"nodes": [
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],
"references": [
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"url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-161",
"source": "[email protected]",
"tags": [
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]
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-127084.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
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}