Summary
Microsoft heeft 114 kwetsbaarheden verholpen in diverse Office producten.
Details
Interpretaties
Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade, zoals genoemd in onderstaande tabel.
Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden een malafide bestand te openen of link te volgen.
Microsoft heeft voor Office 114 kwetsbaarheden verholpen. De 4 ernstigste kwetsbaarheden bevinden zich in meerdere Office componenten en hebben een CVSS score van 9.8 toegewezen gekregen. Kwaadwillenden met toegang tot deze componenten kunnen zonder voorafgaande authenticatie mogelijk code uitvoeren of zich toegang verschaffen tot het kwetsbare systeem. Deze kwetsbaarheden zijn in onderstaande tabel weergegeven.
De overige 110 kwetsbaarheden variëren in ernst van middelmatig tot hoog en kritiek. Raapleeg het MSRC-portaal voor aanvullende informatie.
```
|----------------|------|---------------------------|-------------------------------------|
| CVE-ID | CVSS | Component | Impact |
|----------------|------|---------------------------|-------------------------------------|
| CVE-2026-78505 | 9,80 | Office | Uitvoeren van willekeurige code |
|----------------|------|---------------------------|-------------------------------------|
| CVE-2026-78509 | 9,80 | Outlook | Uitvoeren van willekeurige code |
|----------------|------|---------------------------|-------------------------------------|
| CVE-2026-78510 | 9,80 | Outlook | Uitvoeren van willekeurige code |
|----------------|------|---------------------------|-------------------------------------|
| CVE-2026-66302 | 9,80 | SKYPE | Uitvoeren van willekeurige code |
|----------------|------|---------------------------|-------------------------------------|
```
Oplossingen
Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op:
Vulnerabilities 114
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Critical 9.8
Skype for Business Remote Code Execution Vulnerability
External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.
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Critical 9.8
Microsoft Office Outlook Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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High 8.8
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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High 8.8
Microsoft Office Access Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Access Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Outlook Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office PowerPoint Remote Code Execution Vulnerability
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
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High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office SharePoint Remote Code Execution Vulnerability
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Publisher Remote Code Execution Vulnerability
Integer overflow or wraparound in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office PowerPoint Remote Code Execution Vulnerability
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Access Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office PowerPoint Remote Code Execution Vulnerability
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Graphics Component Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Publisher Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
-
High 8.8
Windows Graphics Component Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
-
High 8.4
Microsoft Outlook and Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
-
High 8.3
Skype for Business Spoofing Vulnerability
Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.
-
High 7.8
Microsoft Word Remote Code Execution Vulnerability
External control of file name or path in Microsoft Office Word allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.5
Skype for Business Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Skype for Business allows an unauthorized attacker to disclose information over a network.
-
High 7.5
Skype for Business and Lync Denial of Service Vulnerability
Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network.
-
High 7.5
Microsoft Office SharePoint Remote Code Execution Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
-
High 7.5
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
-
High 7.3
Microsoft Office SharePoint Spoofing Vulnerability
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.
-
High 7.3
Microsoft Office SharePoint Spoofing Vulnerability
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.
-
High 7.3
Microsoft Office Access Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.
-
High 7.1
Skype for Business Spoofing Vulnerability
Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.
-
High 7.0
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
Medium 6.5
Skype for Business Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.
-
Medium 6.5
Microsoft Office Spoofing Vulnerability
Insufficiently protected credentials in Microsoft Office allows an unauthorized attacker to perform spoofing over a network.
-
Medium 6.5
Skype for Business and Lync Denial of Service Vulnerability
Null pointer dereference in Skype for Business allows an authorized attacker to deny service over a network.
-
Medium 6.5
Skype for Business Information Disclosure Vulnerability
Generation of error message containing sensitive information in Skype for Business allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Skype for Business and Lync Denial of Service Vulnerability
Out-of-bounds read in Skype for Business allows an authorized attacker to deny service over a network.
-
Medium 6.5
Microsoft Office SharePoint Information Disclosure Vulnerability
Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office SharePoint Information Disclosure Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
-
Medium 6.5
Skype for Business Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.
-
Medium 6.5
Microsoft Office SharePoint Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Word Information Disclosure Vulnerability
Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Word Information Disclosure Vulnerability
Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Excel Information Disclosure Vulnerability
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Outlook Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 6.5
Microsoft Office Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Office allows an unauthorized attacker to disclose information over a network.
-
Medium 5.8
Microsoft Teams for Android Information Disclosure Vulnerability
Origin validation error in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.
-
Medium 5.5
Microsoft Office Word Information Disclosure Vulnerability
Improper null termination in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.5
Microsoft Excel Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
-
Medium 5.0
Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an authorized attacker to disclose information locally.
-
Medium 4.6
Microsoft Office SharePoint Spoofing Vulnerability
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.
-
Low 3.5
Microsoft Office SharePoint Spoofing Vulnerability
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.
-
Low 3.5
Microsoft Office SharePoint Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Revision history
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#1.0.0
Initiele versie
References
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Reference
https://portal.msrc.microsoft.com/en-us/security-guidance