Search criteria
2264 vulnerabilities found for Office by Microsoft
CVE-2026-21511 (GCVE-0-2026-21511)
Vulnerability from nvd – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:23
VLAI?
Title
Microsoft Outlook Spoofing Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Severity ?
CWE
- CWE-502 - Deserialization of Untrusted Data
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-2026-21261 (GCVE-0-2026-21261)
Vulnerability from nvd – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:23
VLAI?
Title
Microsoft Excel Information Disclosure Vulnerability
Summary
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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-2026-21260 (GCVE-0-2026-21260)
Vulnerability from nvd – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Outlook Spoofing Vulnerability
Summary
Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Severity ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
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-2026-21259 (GCVE-0-2026-21259)
Vulnerability from nvd – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Excel Elevation of Privilege Vulnerability
Summary
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
Severity ?
CWE
- CWE-122 - Heap-based Buffer Overflow
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-2026-21258 (GCVE-0-2026-21258)
Vulnerability from nvd – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Excel Information Disclosure Vulnerability
Summary
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Severity ?
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-2026-21509 (GCVE-0-2026-21509)
Vulnerability from nvd – Published: 2026-01-26 17:06 – Updated: 2026-02-22 17:01
VLAI?
Title
Microsoft Office Security Feature Bypass Vulnerability
Summary
Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.
Severity ?
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
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(custom)
|
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CVE-2026-20957 (GCVE-0-2026-20957)
Vulnerability from nvd – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-20955 (GCVE-0-2026-20955)
Vulnerability from nvd – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
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-2026-20953 (GCVE-0-2026-20953)
Vulnerability from nvd – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2026-20952 (GCVE-0-2026-20952)
Vulnerability from nvd – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 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 nvd – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-20948 (GCVE-0-2026-20948)
Vulnerability from nvd – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
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CVE-2026-20946 (GCVE-0-2026-20946)
Vulnerability from nvd – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
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 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 nvd – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
Title
Microsoft Office Click-To-Run Remote Code Execution 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 Office 2016 |
Affected:
16.0.0 , < 16.0.5535.1000
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
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CVE-2026-21261 (GCVE-0-2026-21261)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:23
VLAI?
Title
Microsoft Excel Information Disclosure Vulnerability
Summary
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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-2026-21511 (GCVE-0-2026-21511)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:23
VLAI?
Title
Microsoft Outlook Spoofing Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Severity ?
CWE
- CWE-502 - Deserialization of Untrusted Data
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-2026-21260 (GCVE-0-2026-21260)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Outlook Spoofing Vulnerability
Summary
Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Severity ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
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-2026-21258 (GCVE-0-2026-21258)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Excel Information Disclosure Vulnerability
Summary
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Severity ?
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-2026-21259 (GCVE-0-2026-21259)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:22
VLAI?
Title
Microsoft Excel Elevation of Privilege Vulnerability
Summary
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
Severity ?
CWE
- CWE-122 - Heap-based Buffer Overflow
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-2026-21509 (GCVE-0-2026-21509)
Vulnerability from cvelistv5 – Published: 2026-01-26 17:06 – Updated: 2026-02-22 17:01
VLAI?
Title
Microsoft Office Security Feature Bypass Vulnerability
Summary
Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.
Severity ?
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
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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|
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CVE-2026-20957 (GCVE-0-2026-20957)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < 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: 2026-02-22 17:01
VLAI?
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 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: 2026-02-22 17:01
VLAI?
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
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CVE-2026-20948 (GCVE-0-2026-20948)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-02-22 17:01
VLAI?
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 365 Apps for Enterprise |
Affected:
16.0.1 , < 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: 2026-02-22 17:01
VLAI?
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-2026-20953 (GCVE-0-2026-20953)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953"
}
],
"title": "Microsoft Office Remote Code Execution Vulnerability"
}
},
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"assignerShortName": "microsoft",
"cveId": "CVE-2026-20953",
"datePublished": "2026-01-13T17:56:47.500Z",
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CVE-2026-20946 (GCVE-0-2026-20946)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-02-22 17:01
VLAI?
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 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: 2026-02-22 17:01
VLAI?
Title
Microsoft Office Click-To-Run Remote Code Execution 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 Office 2016 |
Affected:
16.0.0 , < 16.0.5535.1000
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
{
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}
],
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"version": "2.0.3"
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],
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],
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}
]
},
{
"platforms": [
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],
"product": "Microsoft SharePoint Server Subscription Edition",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19127.20442",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
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],
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CERTFR-2026-AVI-0089
Vulnerability from certfr_avis - Published: 2026-01-27 - Updated: 2026-01-27
Une vulnérabilité a été découverte dans Microsoft Office. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.
Microsoft indique que la vulnérabilité CVE-2026-21509 est activement exploitée.
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 | Microsoft Office LTSC 2021 pour éditions 32 bits | ||
| Microsoft | Office | Microsoft Office 2019 pour éditions 32 bits | ||
| Microsoft | Office | Microsoft 365 Apps pour Enterprise pour systèmes 64 bits | ||
| Microsoft | Office | Microsoft Office 2019 pour éditions 64 bits | ||
| Microsoft | Office | Microsoft Office LTSC 2024 pour éditions 64 bits | ||
| Microsoft | Office | Microsoft Office 2016 (édition 64 bits) | ||
| Microsoft | Office | Microsoft Office 2016 (édition 32 bits) | ||
| 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": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
"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 2019 pour \u00e9ditions 64 bits",
"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 Office 2016 (\u00e9dition 64 bits)",
"product": {
"name": "Office",
"vendor": {
"name": "Microsoft",
"scada": false
}
}
},
{
"description": "Microsoft Office 2016 (\u00e9dition 32 bits)",
"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-2026-21509",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21509"
}
],
"initial_release_date": "2026-01-27T00:00:00",
"last_revision_date": "2026-01-27T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0089",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-27T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Microsoft Office. Elle permet \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.\n\nMicrosoft indique que la vuln\u00e9rabilit\u00e9 CVE-2026-21509 est activement exploit\u00e9e.",
"title": "Vuln\u00e9rabilit\u00e9 dans Microsoft Office",
"vendor_advisories": [
{
"published_at": "2026-01-26",
"title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21509",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21509"
}
]
}
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"
}
]
}