CVE-2026-100209: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Description
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Microsoft
Microsoft 365 Apps for Enterprise
Microsoft
Microsoft Office 365 for Mac
Microsoft
Microsoft Office LTSC 2024
Microsoft
Microsoft Office LTSC for Mac 2021
Microsoft
Microsoft Office LTSC for Mac 2024
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-25T15:11:44.539Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100209","vendor":"Microsoft"}]
Threat ID: 6ace84882cdf04f6569efafb
Added to database: 10/13/2026, 19:20:40 UTC
Last updated: 10/13/2026, 22:35:46 UTC
Views: 2
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Actions
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