Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Fix
Microsoft's update · Important
- Release Notes — Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft 365 Apps for Enterprise for 32-bit Systems · build https://aka.ms/OfficeSecurityReleases
- Release Notes — Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac · build 16.114.26101123
From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-28 · Exploitation Less Likely.
Patch, vendor advisory and mitigation references on NVD 1
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · microsoftNVD modified 2026-10-14 20:07
Affected (CPE criteria) 5
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*