CVE-2026-70096
Microsoft Microsoft 365 Apps for Enterprise
- Microsoft Microsoft 365 Apps for Enterprise
- Critical
- CVSS 9.8
- EPSS 0.96%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Microsoft 365 Apps for Enterprise (32-bit Systems, x64-based Systems) | from 16.0.1, before https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft Microsoft Office 365 for Mac | from 1.0.0, before 16.114.26101123 | 16.114.26101123 |
| Microsoft Microsoft Office LTSC 2021 (32-bit Systems, x64-based Systems) | from 16.0.1, before 16.0.14334.20974 | 16.0.14334.20974 |
| Microsoft Microsoft Office LTSC 2024 (32-bit Systems, x64-based Systems) | from 16.0.0, before 16.0.17932.21056 | 16.0.17932.21056 |
| Microsoft Microsoft Office LTSC for Mac 2021 | from 16.0.1, before 16.114.26101123 | 16.114.26101123 |
| Microsoft Microsoft Office LTSC for Mac 2024 | from 16.0.0, before 16.114.26101123 | 16.114.26101123 |
| Microsoft Windows 10 Version 1607 (32-bit Systems, x64-based Systems) | from 10.0.14393.0, before 10.0.14393.9612 | 10.0.14393.9612 |
| Microsoft Windows 10 Version 1809 (32-bit Systems, x64-based Systems) | from 10.0.17763.0, before 10.0.17763.9376 | 10.0.17763.9376 |
| Microsoft Windows 10 Version 21H2 (32-bit Systems, ARM64-based Systems, x64-based Systems) | from 10.0.19044.0, before 10.0.19044.7807 | 10.0.19044.7807 |
| Microsoft Windows 10 Version 22H2 (32-bit Systems, ARM64-based Systems, x64-based Systems) | from 10.0.19045.0, before 10.0.19045.7807 | 10.0.19045.7807 |
| Microsoft Windows 11 version 23H2 (ARM64-based Systems) | from 10.0.22631.0, before 10.0.22631.7652 | 10.0.22631.7652 |
| Microsoft Windows 11 Version 23H2 (x64-based Systems) | from 10.0.22631.0, before 10.0.22631.7652 | 10.0.22631.7652 |
| Microsoft Windows 11 Version 24H2 (ARM64-based Systems, x64-based Systems) | from 10.0.26100.0, before 10.0.26100.9711 | 10.0.26100.9711 |
| Microsoft Windows 11 Version 25H2 (ARM64-based Systems, x64-based Systems) | from 10.0.26200.0, before 10.0.26200.9711 | 10.0.26200.9711 |
| Microsoft Windows 11 version 26H1 (ARM64-based Systems, x64-based Systems) | from 10.0.28000.0, before 10.0.28000.3231 | 10.0.28000.3231 |
| Microsoft Windows 11 Version 26H2 (ARM64-based Systems, x64-based Systems) | from 10.0.26300.0, before 10.0.26300.9711 | 10.0.26300.9711 |
| Microsoft Windows Server 2012 (x64-based Systems) | from 6.2.9200.0, before 6.2.9200.26434 | 6.2.9200.26434 |
| Microsoft Windows Server 2012 (Server Core installation) (x64-based Systems) | from 6.2.9200.0, before 6.2.9200.26434 | 6.2.9200.26434 |
| Microsoft Windows Server 2012 R2 (x64-based Systems) | from 6.3.9600.0, before 6.3.9600.23470 | 6.3.9600.23470 |
| Microsoft Windows Server 2012 R2 (Server Core installation) (x64-based Systems) | from 6.3.9600.0, before 6.3.9600.23470 | 6.3.9600.23470 |
The CVE record lists 7 ranges this page cannot state exactly.
Advisories and fixes
- Vendor advisory msrc.microsoft.com
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.8 (v3.1, scored by microsoft)
- EPSS
- 0.96% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 24, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: yes. Technical impact: total. As of Oct 13, 2026.
- Weakness
- CWE-122: Heap-based Buffer Overflow
- Vendor
- Microsoft, Microsoft 365 Apps for Enterprise
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.