Sep 2025: Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-54903 Published on September 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2025-54903 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2025-54903
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-54903 are published in these products:
Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0.0 and below 16.0.5517.1000 is affected.
- Version 19.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below 16.101.25091314 is affected.
- Version 16.0.0 and below 16.101.25091314 is affected.
- Version 16.0.0.0 and below 16.0.10417.20047 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.