Summary
Microsoft heeft kwetsbaarheden verholpen in diverse Office producten.
Details
Interpretaties
Een kwaadwillende kan de kwetsbaarheden misbruiken om zich voor te doen als een andere gebruiker, zich verhoogde rechten toe te kennen en/of willekeurige code uit te voeren en mogelijk toegang te krijgen tot gevoelige gegevens in de context van het slachtoffer.
Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden een malfide document te openen, of link te volgen.
```
Microsoft Office Excel:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-26112 | 7.80 | Uitvoeren van willekeurige code |
| CVE-2026-26107 | 7.80 | Uitvoeren van willekeurige code |
| CVE-2026-26108 | 7.80 | Uitvoeren van willekeurige code |
| CVE-2026-26109 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-26144 | 7.50 | Toegang tot gevoelige gegevens |
|----------------|------|-------------------------------------|
Microsoft Office:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-26113 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-26134 | 7.80 | Verkrijgen van verhoogde rechten |
| CVE-2026-26110 | 8.40 | Uitvoeren van willekeurige code |
|----------------|------|-------------------------------------|
Microsoft Office SharePoint:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-26105 | 8.10 | Voordoen als andere gebruiker |
| CVE-2026-26114 | 8.80 | Uitvoeren van willekeurige code |
| CVE-2026-26106 | 8.80 | 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 11
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High 8.8
Microsoft SharePoint Server Remote Code Execution Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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High 8.8CVE-2026-26114 Public exploit
Microsoft SharePoint Server Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
-
High 8.4
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
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High 8.4
Microsoft Office Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
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High 8.4
Microsoft Office Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
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High 8.1
Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
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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
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
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High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
-
High 7.8
Microsoft Office Elevation of Privilege Vulnerability
Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.
-
High 7.5
Microsoft Excel Information Disclosure Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Revision history
-
#1.0.0
Initiele versie