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CVE-2026-70242

Microsoft Office Outlook Remote Code Execution Vulnerability

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Fix
Fixed in 16.0.14334.20974, 16.0.17932.21056
Public exploit
None on Exploit-DB
CISA SSVC
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).

SSVC documentation

Summary

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected versions

  • Microsoft Microsoft 365 Apps for Enterprise

    From 16.0.1 · fixed in https://aka.ms/OfficeSecurityReleases

  • Microsoft Microsoft Office LTSC 2021

    From 16.0.1 · fixed in 16.0.14334.20974

  • Microsoft Microsoft Office LTSC 2024

    From 16.0.0 · fixed in 16.0.17932.21056

References 1

msrc.microsoft.com