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CVE-2026-54988

6.1 medium SSVC exploitation: none Analyzed
NVD · CVE.org

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Fix

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 6.1 · microsoftNVD modified 2026-10-14 22:10

Affected (CPE criteria) 14

  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
  • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
  • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
  • cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*
  • cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*

References 1