CVE-2026-81390

Summary

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

Affected Software

VendorProductVersion RangeStatus
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1 < 16.0.20326.20138affected
MicrosoftMicrosoft Excel 201616.0.0.0 < 16.0.5569.1003affected
MicrosoftMicrosoft Office 201616.0.0 < 16.0.5569.1003affected
MicrosoftMicrosoft Office 201919.0.0 < 16.0.10417.20207affected
MicrosoftMicrosoft Office 365 for Mac-affected
MicrosoftMicrosoft Office LTSC 202116.0.1 < 16.0.14334.20906affected
MicrosoftMicrosoft Office LTSC 202416.0.0 < 16.0.17932.20976affected
MicrosoftMicrosoft Office LTSC for Mac 2021-affected
MicrosoftMicrosoft Office LTSC for Mac 2024-affected
MicrosoftOffice Online Server16.0.0.0 < 16.0.10417.20207affected

Weaknesses

  • CWE-125: CWE-125: Out-of-bounds Read

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References