CVE-2026-70105
Full vulnerability record from the local CVENow database.
Description
Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-20 22:18:01.723000
Last modified
2026-10-26 10:10:00.140000
View original CVE JSON
{
"id": "CVE-2026-70105",
"sourceIdentifier": "[email protected]",
"published": "2026-08-20T22:18:01.723",
"lastModified": "2026-10-26T10:10:00.140",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network."
},
{
"lang": "es",
"value": "Validación de entrada inadecuada en Microsoft Office Word permite a un atacante no autorizado divulgar información a través de una red."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Microsoft 365 Apps for Enterprise",
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"versions": [
{
"version": "16.0.1",
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Office 2019",
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"versions": [
{
"version": "19.0.0",
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Office 365 for Mac",
"versions": [
{
"version": "1.0.0",
"lessThan": "16.112.26081010",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Office LTSC 2021",
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"versions": [
{
"version": "16.0.1",
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Office LTSC 2024",
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"versions": [
{
"version": "16.0.0",
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Office LTSC for Mac 2021",
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"versionType": "custom",
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}
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},
{
"vendor": "Microsoft",
"product": "Microsoft Word 2016",
"platforms": [
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"x64-based Systems"
],
"versions": [
{
"version": "16.0.1",
"lessThan": "16.0.5565.1000",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-21T11:14:46.944343Z",
"id": "CVE-2026-70105",
"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-20"
}
]
}
],
"configurations": [
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"nodes": [
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],
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70105",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}