Description
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | >= 16.0.1, < https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office 2019 | >= 19.0.0, < https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office 365 for Mac | >= 1.0.0, < 16.111.26071215 |
| Microsoft | Microsoft Office LTSC 2021 | >= 16.0.1, < https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC 2024 | >= 16.0.0, < https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC for Mac 2021 | >= 16.0.1, < 16.111.26071215 |
| Microsoft | Microsoft Office LTSC for Mac 2024 | >= 16.0.0, < 16.111.26071215 |
| Microsoft | Office Online Server | >= 16.0.0.0, < 16.0.10417.20175 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54131Vendor Advisory, Patch
Timeline
- Published
- Jul 14, 2026
- Last modified
- Jul 15, 2026
- NVD status
- Analyzed