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CERTFR-2026-AVI-0149
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Microsoft Office. Elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Microsoft indique que la vulnérabilité CVE-2026-21514 est activement exploitée.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Microsoft | N/A | Microsoft Excel 2016 (édition 64 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Excel 2016 (édition 32 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Office LTSC 2024 pour éditions 64 bits | ||
| Microsoft | N/A | Microsoft Outlook 2016 (édition 64 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Office LTSC 2021 pour éditions 32 bits | ||
| Microsoft | N/A | Microsoft Office 2019 pour éditions 32 bits | ||
| Microsoft | N/A | Microsoft 365 Apps pour Enterprise pour systèmes 32 bits | ||
| Microsoft | N/A | Microsoft Office 2019 pour éditions 64 bits | ||
| Microsoft | N/A | Microsoft Office LTSC 2024 pour éditions 32 bits | ||
| Microsoft | N/A | Microsoft Outlook 2016 (édition 32 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Word 2016 (édition 32 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Word 2016 (édition 64 bits) versions antérieures à 16.0.5539.1002 | ||
| Microsoft | N/A | Microsoft Office LTSC 2021 pour éditions 64 bits | ||
| Microsoft | N/A | Microsoft Office LTSC pour Mac 2021 versions antérieures à 16.106.26020821 | ||
| Microsoft | N/A | Microsoft 365 Apps pour Enterprise pour systèmes 64 bits | ||
| Microsoft | N/A | Microsoft Office LTSC pour Mac 2024 versions antérieures à 16.106.26020821 | ||
| Microsoft | N/A | Office Online Server versions antérieures à 16.0.10417.20097 |
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Microsoft Excel 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Excel 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2024 pour \u00e9ditions 64 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Outlook 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2019 pour \u00e9ditions 32 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 32 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2019 pour \u00e9ditions 64 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2024 pour \u00e9ditions 32 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Outlook 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2021 pour \u00e9ditions 64 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC pour Mac 2021 versions ant\u00e9rieures \u00e0 16.106.26020821",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 64 bits",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC pour Mac 2024 versions ant\u00e9rieures \u00e0 16.106.26020821",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Office Online Server versions ant\u00e9rieures \u00e0 16.0.10417.20097",
"product": {
"name": "N/A",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-21514",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21514"
},
{
"name": "CVE-2026-21258",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21258"
},
{
"name": "CVE-2026-21260",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21260"
},
{
"name": "CVE-2026-21259",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21259"
},
{
"name": "CVE-2026-21511",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21511"
},
{
"name": "CVE-2026-21261",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21261"
}
],
"initial_release_date": "2026-02-11T00:00:00",
"last_revision_date": "2026-02-11T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0149",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-02-11T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft Office. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.\n\nMicrosoft indique que la vuln\u00e9rabilit\u00e9 CVE-2026-21514 est activement exploit\u00e9e.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft Office",
"vendor_advisories": [
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21259",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21259"
},
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21261",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21261"
},
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21258",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21258"
},
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21514",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
},
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21260",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21260"
},
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21511",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511"
}
]
}
CVE-2026-21511 (GCVE-0-2026-21511)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-502 - Deserialization of Untrusted Data
Summary
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
|||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-21511",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-11T15:44:45.355051Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-11T15:45:41.731Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft 365 Apps for Enterprise",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "19.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office LTSC 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office LTSC 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.106.26020821",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.106.26020821",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Enterprise Server 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5539.1002",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Server 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.10417.20097",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Server Subscription Edition",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19127.20518",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Word 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5539.1002",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*",
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"vulnerable": true
},
{
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"versionEndExcluding": "16.0.10417.20097",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
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"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "19.0.0",
"vulnerable": true
},
{
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"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
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"vulnerable": true
},
{
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"versionEndExcluding": "16.106.26020821",
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"vulnerable": true
},
{
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{
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"vulnerable": true
},
{
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"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:*",
"versionEndExcluding": "16.106.26020821",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
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"versionEndExcluding": "16.0.5539.1002",
"versionStartIncluding": "16.0.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-02-10T16:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-10T13:21:22.967Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Outlook Spoofing Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511"
}
],
"title": "Microsoft Outlook Spoofing Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-21511",
"datePublished": "2026-02-10T17:51:35.908Z",
"dateReserved": "2025-12-30T18:10:54.845Z",
"dateUpdated": "2026-04-10T13:21:22.967Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-21261 (GCVE-0-2026-21261)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-21261",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-11T16:07:46.518765Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-11T16:09:03.084Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft 365 Apps for Enterprise",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Excel 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5539.1002",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "19.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office LTSC 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office LTSC 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.106.26020821",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.106.26020821",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
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CVE-2026-21260 (GCVE-0-2026-21260)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
|||||||||||||||||||||||||||||||||||||
|
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CVE-2026-21259 (GCVE-0-2026-21259)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
|||||||||||||||||||||||||||
|
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CVE-2026-21258 (GCVE-0-2026-21258)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-21514 (GCVE-0-2026-21514)
Vulnerability from cvelistv5
Published
2026-02-10 17:51
Modified
2026-04-10 13:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Summary
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
||||||||||||||||||||||
|
||||||||||||||||||||||||
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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