CVE-2026-1636 Privilege escalation in Service Bridge

Medium 5.4 Published 15 Apr 2026 Updated 16 Apr 2026

A local authenticated user can execute code with elevated privileges via DLL hijacking in Lenovo Service Bridge.

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-2026-1636?

CVE-2026-1636 is a medium-severity vulnerability in Lenovo Service Bridge, 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

A potential DLL hijacking vulnerability was reported in Lenovo Service Bridge that, under certain conditions, could allow a local authenticated user to execute code with elevated privileges.

Weakness: CWE-427

Which versions are affected by CVE-2026-1636?

It affects 1 product.

Products include Lenovo Service Bridge.

How do I fix CVE-2026-1636?

No fix has been published for CVE-2026-1636 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1636 being exploited?

There is no known exploitation of CVE-2026-1636 in the wild and no public exploit code.

Sources

Also known as GHSA-qpgx-vhr9-cwj5.