Jan 2026: Microsoft Office Click-To-Run Remote Code Execution Vulnerability
CVE-2026-20943 Published on January 13, 2026
Microsoft Office Click-To-Run Remote Code Execution Vulnerability
Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
Weakness Type
What is an Untrusted Path Vulnerability?
The application searches for critical resources using an externally-supplied search path that can point to resources that are not under the application's direct control.
CVE-2026-20943 has been classified to as an Untrusted Path vulnerability or weakness.
Products Associated with CVE-2026-20943
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-20943 are published in these products:
Affected Versions
Microsoft Office 2016:- Version 16.0.0 and below 16.0.5535.1000 is affected.
- Version 1.0 and below 16.0.19426.20170 is affected.
- Version 16.0.0 and below 16.0.5535.1001 is affected.
- Version 16.0.0 and below 16.0.10417.20083 is affected.
- Version 16.0.0 and below 16.0.19127.20442 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.