Jan 2026: Microsoft Office Remote Code Execution Vulnerability
CVE-2026-20952 Published on January 13, 2026
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office 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-2026-20952 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-20952
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0 and below 16.0.5535.1000 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 16.105.26011018 is affected.
- Version 16.0.0 and below 16.105.26011018 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.