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Desk

CVE-2026-97743

6.5 medium SSVC exploitation: none Analyzed

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

  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:-:*

References 1