CVE-2021-41540 Use after free in Solid Edge SE2021

Q: Is CVE-2021-41540 being exploited?

There is no known exploitation of CVE-2021-41540 in the wild and no public exploit code.

Q: How do I fix CVE-2021-41540?

No fix has been published for CVE-2021-41540 yet. Limit exposure of the affected software until one is available.

High 7.8 Published 28 Sep 2021 Updated 4 Aug 2024

Attackers can execute arbitrary code by tricking users into opening malicious OBJ files in Solid Edge, requiring an upgrade to the latest maintenance pack.

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

What is CVE-2021-41540?

CVE-2021-41540 is a high-severity use after free vulnerability in Siemens Solid Edge SE2021, published on 28 Sep 2021. 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 vulnerability has been identified in Solid Edge SE2021 (All versions < SE2021MP8). The affected application contains a use-after-free vulnerability while parsing OBJ files. An attacker could leverage this vulnerability to execute code in the context of the current process (ZDI-CAN-13776).

Weakness: CWE-416

Which versions are affected by CVE-2021-41540?

It affects 1 product.

Products include Siemens Solid Edge.

How do I fix CVE-2021-41540?

No fix has been published for CVE-2021-41540 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-41540 being exploited?

There is no known exploitation of CVE-2021-41540 in the wild and no public exploit code.

Sources

Also known as GHSA-6q4m-g67w-mr87.