CVE-2026-97749: Microsoft Office Outlook Remote Code Execution Vulnerability
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office Outlook Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974
Event History
Frequently Asked Questions
Does exploitation require an authenticated account or user interaction?
No. The supplied CVSS vector indicates network attackability with low attack complexity, no privileges required, and no user interaction required.
What impact could successful exploitation have?
Successful exploitation could allow remote code execution. The supplied severity data rates confidentiality, integrity, and availability impact as high.
Which Outlook-related product families are listed as affected?
The listed products are Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2021 for 32-bit and 64-bit editions, and Microsoft Office LTSC 2024 for 32-bit and 64-bit editions.