CVE-2026-4135 Path traversal in Software Fix

Medium 5.2 Published 15 Apr 2026 Updated 15 Apr 2026

A local authenticated user can exploit a path traversal flaw in Lenovo Software Fix to write arbitrary files with elevated privileges, potentially leading to privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-4135?

CVE-2026-4135 is a medium-severity path traversal vulnerability in Lenovo Software Fix, published on 15 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

During an internal security assessment, a potential vulnerability was discovered in Lenovo Software Fix, that during installation could allow a local authenticated user to perform an arbitrary file write with elevated privileges.

Weakness: CWE-59

Which versions are affected by CVE-2026-4135?

It affects 1 product.

Products include Lenovo Software Fix.

How do I fix CVE-2026-4135?

No fix has been published for CVE-2026-4135 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-4135 being exploited?

There is no known exploitation of CVE-2026-4135 in the wild and no public exploit code.

Sources

Also known as GHSA-7qr2-rw3m-88wx.