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CERTFR-2026-AVI-0043
Vulnerability from certfr_avis - Published: 2026-01-14 - Updated: 2026-01-14
De multiples vulnérabilités ont été découvertes dans Microsoft Office. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Microsoft | Office | Microsoft Office LTSC 2021 pour éditions 64 bits | ||
| Microsoft | Office | Office Online Server versions antérieures à 16.0.10417.20083 | ||
| Microsoft | Office | Microsoft Office LTSC 2021 pour éditions 32 bits | ||
| Microsoft | Office | Microsoft Excel 2016 (édition 64 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office 2019 pour éditions 32 bits | ||
| Microsoft | Office | Microsoft 365 Apps pour Enterprise pour systèmes 64 bits | ||
| Microsoft | Office | Microsoft Office Deployment Tool versions antérieures à 16.0.19426.20170 | ||
| Microsoft | Office | Microsoft Office 2019 pour éditions 64 bits | ||
| Microsoft | Office | Microsoft Office LTSC pour Mac 2024 versions antérieures à 16.105.26011018 | ||
| Microsoft | Office | Microsoft Excel 2016 (édition 32 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office 2016 (édition 32 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office LTSC 2024 pour éditions 64 bits | ||
| Microsoft | Office | Microsoft Word 2016 (édition 64 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office LTSC pour Mac 2021 versions antérieures à 16.105.26011018 | ||
| Microsoft | Office | Microsoft Word 2016 (édition 32 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office 2016 (édition 64 bits) versions antérieures à 16.0.5535.1000 | ||
| Microsoft | Office | Microsoft Office LTSC 2024 pour éditions 32 bits | ||
| Microsoft | Office | Microsoft 365 Apps pour Enterprise pour systèmes 32 bits |
References
| Title | Publication Time | Tags | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Microsoft Office LTSC 2021 pour \u00e9ditions 64 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Office Online Server versions ant\u00e9rieures \u00e0 16.0.10417.20083",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Excel 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2019 pour \u00e9ditions 32 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 64 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office Deployment Tool versions ant\u00e9rieures \u00e0 16.0.19426.20170",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2019 pour \u00e9ditions 64 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC pour Mac 2024 versions ant\u00e9rieures \u00e0 16.105.26011018",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Excel 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2024 pour \u00e9ditions 64 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC pour Mac 2021 versions ant\u00e9rieures \u00e0 16.105.26011018",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Word 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5535.1000",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office LTSC 2024 pour \u00e9ditions 32 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 32 bits",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
}
],
"affected_systems_content": "",
"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-2026-20957",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20957"
},
{
"name": "CVE-2026-20943",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20943"
},
{
"name": "CVE-2026-20948",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20948"
},
{
"name": "CVE-2026-20956",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20956"
},
{
"name": "CVE-2026-20955",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20955"
},
{
"name": "CVE-2026-20952",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20952"
},
{
"name": "CVE-2026-20950",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20950"
},
{
"name": "CVE-2026-20949",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20949"
},
{
"name": "CVE-2026-20946",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20946"
},
{
"name": "CVE-2026-20953",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20953"
},
{
"name": "CVE-2026-20944",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-20944"
}
],
"initial_release_date": "2026-01-14T00:00:00",
"last_revision_date": "2026-01-14T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0043",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-14T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft Office. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft Office",
"vendor_advisories": [
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20953",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20949",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20949"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20956",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20956"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20946",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20946"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20955",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20955"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20950",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20950"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20957",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20957"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20944",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20944"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20952",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20952"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20943",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-20948",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20948"
}
]
}
CVE-2026-20957 (GCVE-0-2026-20957)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Excel Remote Code Execution Vulnerability
Summary
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity ?
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Office Online Server |
Affected:
16.0.0.0 , < 16.0.10417.20083
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20957",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-08T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T04:56:25.745Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Office Online Server",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.10417.20083",
"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 365 Apps for Enterprise",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.105.26011018",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"32-bit 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 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.105.26011018",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Excel 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5535.1000",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:office_2021:*:*:*:*:ltsc:*:*:*",
"versionEndExcluding": "16.0.10417.20083",
"versionStartIncluding": "16.0.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "19.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:*",
"versionEndExcluding": "16.105.26011018",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*",
"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": "16.105.26011018",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:excel_2016:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "16.0.5535.1000",
"versionStartIncluding": "16.0.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-01-13T08:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-191",
"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
"lang": "en-US",
"type": "CWE"
},
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-13T18:04:53.461Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Excel Remote Code Execution Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20957"
}
],
"title": "Microsoft Excel Remote Code Execution Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-20957",
"datePublished": "2026-01-13T17:57:09.187Z",
"dateReserved": "2025-12-04T20:04:16.340Z",
"dateUpdated": "2026-01-14T04:56:25.745Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-20946 (GCVE-0-2026-20946)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 19:22
VLAI?
EPSS
Title
Microsoft Excel Remote Code Execution Vulnerability
Summary
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20946",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T04:56:18.253420Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T19:22:23.786Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"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 365 Apps for Enterprise",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.105.26011018",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"32-bit 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",
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CVE-2026-20956 (GCVE-0-2026-20956)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Excel Remote Code Execution Vulnerability
Summary
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-822 - Untrusted Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
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CVE-2026-20943 (GCVE-0-2026-20943)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 19:22
VLAI?
EPSS
Title
Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
Summary
Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-426 - Untrusted Search Path
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server 2019 |
Affected:
16.0.0 , < 16.0.10417.20083
(custom)
|
||||||||||||||||||||||
|
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CVE-2026-20948 (GCVE-0-2026-20948)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Word Remote Code Execution Vulnerability
Summary
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-822 - Untrusted Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||||||||||||||||||||||||||||||||
|
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CVE-2026-20949 (GCVE-0-2026-20949)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Excel Security Feature Bypass Vulnerability
Summary
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Severity ?
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
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CVE-2026-20950 (GCVE-0-2026-20950)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Excel Remote Code Execution Vulnerability
Summary
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Office Online Server |
Affected:
16.0.0.0 , < 16.0.10417.20083
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-20944 (GCVE-0-2026-20944)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 19:22
VLAI?
EPSS
Title
Microsoft Word Remote Code Execution Vulnerability
Summary
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
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CVE-2026-20953 (GCVE-0-2026-20953)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 19:22
VLAI?
EPSS
Title
Microsoft Office Remote Code Execution Vulnerability
Summary
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2026-20952 (GCVE-0-2026-20952)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Office Remote Code Execution Vulnerability
Summary
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2026-20955 (GCVE-0-2026-20955)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-14 04:56
VLAI?
EPSS
Title
Microsoft Excel Remote Code Execution Vulnerability
Summary
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-822 - Untrusted Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Office Online Server |
Affected:
16.0.0.0 , < 16.0.10417.20083
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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