Remote Code Execution Vulnerability in Microsoft Office
CVE-2025-62557

8.4HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Office Ltsc 2024
Microsoft 365 Apps For Enterprise
Microsoft Office 2016
Microsoft Office 2019
Vendor
CVE Published:
9 December 2025

What is CVE-2025-62557?

A vulnerability in Microsoft Office enables an unauthorized attacker to execute arbitrary code locally on affected systems. This flaw arises from improper handling of memory within the software, which can be exploited to gain control over the application. Users are advised to apply the latest security updates to mitigate risks associated with this vulnerability.

Affected Version(s)

Microsoft 365 Apps for Enterprise x64-based Systems 16.0.1

Microsoft Office 2016 32-bit Systems 16.0.0 < 16.0.5530.1001

Microsoft Office 2019 32-bit Systems 19.0.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-62557 : Remote Code Execution Vulnerability in Microsoft Office