CVE-2026-63427 Auth bypass in Software Fix

High 8.5 Published Updated

A local authenticated user can bypass authentication in Lenovo Software Fix to execute arbitrary code with elevated privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-63427?

CVE-2026-63427 is a high-severity authentication bypass vulnerability in Lenovo Software Fix, published on 10 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An authentication bypass vulnerability was discovered in Lenovo Software Fix that could allow a local authenticated user to perform arbitrary code execution with elevated privileges.

Weakness: CWE-290

Which versions are affected by CVE-2026-63427?

How do I fix CVE-2026-63427?

No fix has been published for CVE-2026-63427 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-63427 being exploited?

There is no known exploitation of CVE-2026-63427 in the wild and no public exploit code.

Sources

Also known as GHSA-gpc6-x93j-gxgm.

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