Description
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Severity (CVSS)
| Base score | 8.8 |
|---|---|
| Severity | High |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| Provided by | CNA |
Weaknesses
- CWE-416 — CWE-416: Use After Free
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 to <https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Excel 2016 | 16.0.0.0 to <16.0.5561.1001 |
| Microsoft | Microsoft Office 2019 | 19.0.0 to <https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 to <https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 to <https://aka.ms/OfficeSecurityReleases |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870 (vendor-advisory patch)
Generated from the official CVE List on 04 Aug 2026 07:02 UTC.