Gitoxide before 0.42.0 Denial of Service via Crafted Commit-Graph File
CVE-2026-123533
Summary
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Products covered
Microsoft Office 365 for Mac
Office Online Server
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC 2021 for 64-bit editions
Show 6 more products
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2024 for 32-bit editions
Microsoft Office LTSC 2024 for 64-bit editions
Microsoft Office LTSC for Mac 2024
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Remediation
Release Notes Click to Run Install KB5002875. Install KB5002877.
Vendor-listed fixes
16.110.26061317
16.0.10417.20137
https://aka.ms/OfficeSecurityReleases
16.0.5556.1001
CVEs in this advisory 1
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.