CVE-2026-45466

Summary

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

Affected Software

VendorProductVersion RangeStatus
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1 < https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office 365 for Mac1.0.0 < 16.110.26061317affected
MicrosoftMicrosoft Office LTSC 202116.0.1 < https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office LTSC 202416.0.0 < https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1 < 16.110.26061317affected
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0 < 16.110.26061317affected

Weaknesses

  • CWE-122: CWE-122: Heap-based Buffer Overflow

ADP Enrichment

CISA ADP Vulnrichment

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

References