CVE-2025-47953: Microsoft Office use after free local code execution

CVE-2025-47953 · Severity: high · CVSS 8.4 · Published 2025-06-10

A vulnerability has been identified in Microsoft Office, the widely used suite of productivity applications. This flaw could allow an attacker who has gained access to a user's device to execute malicious code with elevated permissions. Such an exploit could lead to the theft of sensitive documents, unauthorized access to corporate data, or a complete compromise of the affected workstation.

Technologies: Microsoft 365 Apps, Microsoft Office 2016, Microsoft Office 2019, Microsoft Office 2021, Microsoft Office 2024, Microsoft Office for Android. Vendors: Microsoft.

Quick answers

Is CVE-2025-47953 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-47953 being exploited in the wild.
How severe is CVE-2025-47953?
High severity, with a CVSS score of 8.4, published 10 June 2025.
Which products and versions are affected?
Microsoft Office 2016, 2019, 2021, 2024, 365 Apps, Android.
Is there a fix for CVE-2025-47953?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-47953 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2025-47953?
Check whether you run Microsoft 365 Apps, Microsoft Office 2016, Microsoft Office 2019 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free (UAF) vulnerability exists within Microsoft Office due to improper memory management. An attacker with local access to a system can exploit this flaw to execute arbitrary code in the context of the current user without requiring prior administrative privileges or user interaction. The vulnerability affects multiple versions of Office, including Office 2016, 2019, LTSC 2021, LTSC 2024, Microsoft 365 Apps, and Office for Android. Successful exploitation results in a complete loss of confidentiality, integrity, and availability. Microsoft has released security updates to address this issue via the MSRC Update Guide.

Affected products

  • Microsoft Office 2016, 2019, 2021, 2024, 365 Apps, Android

Timeline

  • 2025-06-10: disclosed
  • 2025-06-10: advisory: Published by Microsoft and NVD

References

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