CVE-2026-55949
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Summary
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft | Microsoft Excel 2016 | 16.0.0.0 < 16.0.5561.1001 | affected |
| Microsoft | Microsoft Office 2019 | 19.0.0 < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 < 16.111.26071215 | affected |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 < https://aka.ms/OfficeSecurityReleases | affected |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 < 16.111.26071215 | affected |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 < 16.111.26071215 | affected |
| Microsoft | Office Online Server | 16.0.0.0 < 16.0.10417.20175 | affected |
Weaknesses
- CWE-908: CWE-908: Use of Uninitialized Resource
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.