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CVE Number Vulnerability Product Severity Date
CVE-2025-62554 Microsoft Office Remote Code Execution Vulnerability New Microsoft Office, Microsoft 365 Critical 06-01-2026

Technical Information

An unauthenticated attacker can exploit a type confusion flaw to execute arbitrary code on a victim’s system by delivering a specially crafted email or malicious link, potentially triggering code execution without any user interaction.

Patch release date: Dec 08, 2025
Further information on this vulnerability is available at : CVE-2025-62554

Affected Software

Microsoft Office LTSC 2024 for 64-bit editions,
Microsoft Office 2019 for 64-bit editions,
Microsoft Office for Android,
Microsoft Office LTSC for Mac 2021,
Microsoft Office LTSC for Mac 2024,
Microsoft Office 2016 (32-bit edition),
Microsoft Office 2016 (64-bit edition),
Microsoft Office LTSC 2021 for 32-bit editions,
Microsoft Office LTSC 2021 for 64-bit editions,
Microsoft Office LTSC 2024 for 32-bit editions,
Microsoft 365 Apps for Enterprise for 32-bit Systems,
Microsoft 365 Apps for Enterprise for 64-bit Systems,
Microsoft Office 2019 for 32-bit editions