CVE-2026-88156
Microsoft Office Outlook Remote Code Execution Vulnerability
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Fix
- Fixed in 16.114.26101123, 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 documentationSummary
Stack-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 365 for Mac
From 1.0.0 · fixed in 16.114.26101123
- 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
- Microsoft Microsoft Office LTSC for Mac 2021
From 16.0.1 · fixed in 16.114.26101123
- Microsoft Microsoft Office LTSC for Mac 2024
From 16.0.0 · fixed in 16.114.26101123