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WID-SEC-W-2026-0081
Vulnerability from csaf_certbund - Published: 2026-01-13 23:00 - Updated: 2026-03-22 23:00Summary
Microsoft Office Produkte: Mehrere Schwachstellen
Severity
Kritisch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Die Microsoft Office Suite beinhaltet zahlreiche Büroanwendungen wie Textverarbeitung, Tabellenkalkulation, Datenbank und weitere Applikationen.
Microsoft Office Online Server ist ein Serverprodukt, das browserbasierte Versionen von Word, PowerPoint, Excel und OneNote bereitstellt.
Microsoft Sharepoint ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. über Webseiten zur Verfügung gestellt.
Microsoft 365 Apps ist eine Office Suite für zahlreiche Büroanwendungen.
Angriff: Ein Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office Produkten und Sharepoint ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um falsche Informationen darzustellen, und um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme: - Windows
References
{
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"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
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"text": "Die Microsoft Office Suite beinhaltet zahlreiche B\u00fcroanwendungen wie Textverarbeitung, Tabellenkalkulation, Datenbank und weitere Applikationen.\r\nMicrosoft Office Online Server ist ein Serverprodukt, das browserbasierte Versionen von Word, PowerPoint, Excel und OneNote bereitstellt. \r\nMicrosoft Sharepoint ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.\r\nMicrosoft 365 Apps ist eine Office Suite f\u00fcr zahlreiche B\u00fcroanwendungen.",
"title": "Produktbeschreibung"
},
{
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"text": "Ein Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office Produkten und Sharepoint ausnutzen, um beliebigen Programmcode auszuf\u00fchren, um Informationen offenzulegen, um falsche Informationen darzustellen, und um Sicherheitsvorkehrungen zu umgehen.",
"title": "Angriff"
},
{
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},
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"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20963"
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CVE-2026-20951 (GCVE-0-2026-20951)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
VLAI?
EPSS
Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Summary
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20959 (GCVE-0-2026-20959)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
VLAI?
EPSS
Title
Microsoft SharePoint Server Spoofing Vulnerability
Summary
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Severity ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20946 (GCVE-0-2026-20946)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20958 (GCVE-0-2026-20958)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
VLAI?
EPSS
Title
Microsoft SharePoint Information Disclosure Vulnerability
Summary
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Severity ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20950 (GCVE-0-2026-20950)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20949 (GCVE-0-2026-20949)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
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)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20953 (GCVE-0-2026-20953)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20955 (GCVE-0-2026-20955)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
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)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20957 (GCVE-0-2026-20957)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
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 | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20948 (GCVE-0-2026-20948)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20947 (GCVE-0-2026-20947)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:49
VLAI?
EPSS
Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Summary
Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Severity ?
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20944 (GCVE-0-2026-20944)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
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)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20952 (GCVE-0-2026-20952)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:57 – Updated: 2026-04-01 13:49
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 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20963 (GCVE-0-2026-20963)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-02 03:55
VLAI?
EPSS
Title
Microsoft SharePoint Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Severity ?
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5535.1001
(custom)
|
||||||||||||
|
||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20956 (GCVE-0-2026-20956)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
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)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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CVE-2026-20943 (GCVE-0-2026-20943)
Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-04-01 13:48
VLAI?
EPSS
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)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Date Public ?
2026-01-13 16:00
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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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