Summary
Microsoft heeft kwetsbaarheden verholpen in diverse Office producten.
Details
Interpretaties
Een kwaadwillende kan de kwetsbaarheden misbruiken om zich voor te doen als andere gebruiker, of willekeurige code uit te voeren met rechten van het slachtoffer en mogelijk toegang te krijgen tot gevoelige gegevens in de context van het slachtoffer.
Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden een malafide bestand te openen of link te volgen.
De kwetsbaarheid met kenmerk CVE-2026-33823 is reeds door Microsoft centraal verholpen en slechts toegevoegd ter informatie. Er zijn geen verdere acties benodigd voor deze kwetsbaarheid.
```
Microsoft Teams:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-32185 | 5.50 | Voordoen als andere gebruiker |
| CVE-2026-33823 | 9.60 | Toegang tot gevoelige gegevens |
|----------------|------|-------------------------------------|
Microsoft Office PowerPoint:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-41102 | 7.10 | Voordoen als andere gebruiker |
|----------------|------|-------------------------------------|
M365 Copilot:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-42893 | 7.40 | <Vertaal: Tampering> |
|----------------|------|-------------------------------------|
Microsoft Office Word:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-35440 | 5.50 | Toegang tot gevoelige gegevens |
| CVE-2026-40364 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-40366 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-40421 | 4.30 | Toegang tot gevoelige gegevens |
| CVE-2026-40361 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-40367 | 8.40 | Uitvoeren van willekeurige code |
|----------------|------|-------------------------------------|
Office for Android:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-42831 | 7.80 | Uitvoeren van willekeurige code |
|----------------|------|-------------------------------------|
Microsoft Office:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-40363 | 8.40 | Uitvoeren van willekeurige code |
| CVE-2026-40419 | 7.80 | Verkrijgen van verhoogde rechten |
| CVE-2026-40358 | 8.40 | Uitvoeren van willekeurige code |
|----------------|------|-------------------------------------|
Microsoft Office SharePoint:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-35439 | 8.80 | Uitvoeren van willekeurige code |
| CVE-2026-40368 | 8.00 | Uitvoeren van willekeurige code |
| CVE-2026-33110 | 8.80 | Uitvoeren van willekeurige code |
| CVE-2026-33112 | 8.80 | Uitvoeren van willekeurige code |
| CVE-2026-40357 | 8.80 | Uitvoeren van willekeurige code |
| CVE-2026-40365 | 8.80 | Uitvoeren van willekeurige code |
|----------------|------|-------------------------------------|
Microsoft Office Excel:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-40360 | 7.80 | Toegang tot gevoelige gegevens |
| CVE-2026-40359 | 7.80 | Uitvoeren van willekeurige code |
| CVE-2026-40362 | 7.80 | Uitvoeren van willekeurige code |
| CVE-2026-42832 | 7.70 | Voordoen als andere gebruiker |
|----------------|------|-------------------------------------|
Microsoft Office Click-To-Run:
|----------------|------|-------------------------------------|
| CVE-ID | CVSS | Impact |
|----------------|------|-------------------------------------|
| CVE-2026-40418 | 7.80 | Verkrijgen van verhoogde rechten |
| CVE-2026-35436 | 8.80 | Verkrijgen van verhoogde rechten |
| CVE-2026-40420 | 8.80 | Verkrijgen van verhoogde rechten |
|----------------|------|-------------------------------------|
```
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 27
-
Critical 9.6
Microsoft Team Events Portal Information Disclosure Vulnerability
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
-
High 8.8
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 8.8CVE-2026-33112 EPSS 31%
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 8.8
Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
-
High 8.8
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 8.8
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 8.8
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 8.8
Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
-
High 8.4
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
-
High 8.4
Microsoft Outlook and Word Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
-
High 8.4
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
-
High 8.4
Microsoft Word Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
-
High 8.4
Microsoft Word Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
-
High 8.4
Microsoft Word Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
-
High 8.0
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 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 Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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 Office Click-To-Run Elevation of Privilege Vulnerability
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
-
High 7.8
Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
-
High 7.8
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
-
High 7.7
Microsoft Office Spoofing Vulnerability
Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
-
High 7.4
Microsoft Outlook for iOS Tampering Vulnerability
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
-
High 7.1
Microsoft PowerPoint for Android Spoofing Vulnerability
Improper access control in Microsoft Office PowerPoint allows an authorized attacker to perform spoofing locally.
-
Medium 5.5
Microsoft Teams Spoofing Vulnerability
Files or directories accessible to external parties in Microsoft Teams allows an unauthorized attacker to perform spoofing locally.
-
Medium 5.5
Microsoft Word Information Disclosure Vulnerability
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
-
Medium 4.3
Microsoft Word Information Disclosure Vulnerability
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Revision history
-
#1.0.0
Initiele versie