CVE-2023-40727 Security feature bypass in QMS Automotive

Q: Is CVE-2023-40727 being exploited?

There is no known exploitation of CVE-2023-40727 in the wild and no public exploit code.

Q: How do I fix CVE-2023-40727?

No fix has been published for CVE-2023-40727 yet. Limit exposure of the affected software until one is available.

High 7.8 Published 12 Sep 2023 Updated 27 Feb 2025

Weak application signing in QMS Automotive Mobile allows attackers to tamper with application code, potentially leading to code execution.

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-2023-40727?

CVE-2023-40727 is a high-severity vulnerability in Siemens QMS Automotive, published on 12 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been identified in QMS Automotive (All versions < V12.39). The QMS.Mobile module of the affected application uses weak outdated application signing mechanism. This could allow an attacker to tamper the application code.

Weakness: CWE-347

Which versions are affected by CVE-2023-40727?

It affects 1 product.

Products include Siemens Qms Automotive.

How do I fix CVE-2023-40727?

No fix has been published for CVE-2023-40727 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-40727 being exploited?

There is no known exploitation of CVE-2023-40727 in the wild and no public exploit code.

Sources

Also known as GHSA-32xp-f3ph-fppf.