CVE-2021-22761 Memory corruption in IGSS Definition (Def.exe) V15.0.0.21140 and prior

High 7.8 Published 11 Jun 2021 Updated 3 Aug 2024

A buffer overflow in IGSS Definition allows remote code execution or information disclosure when a malicious CGF file is imported.

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-2021-22761?

CVE-2021-22761 is a high-severity memory corruption vulnerability in IGSS Definition (Def.exe) V15.0.0.21140 and prior, published on 11 Jun 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 CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in disclosure of information or remote code e+F15xecution due to missing length check on user supplied data, when a malicious CGF file is imported to IGSS Definition.

Weakness: CWE-119

Which versions are affected by CVE-2021-22761?

It affects 1 product.

Products include Schneider-Electric Interactive Graphical Scada System.

How do I fix CVE-2021-22761?

No fix has been published for CVE-2021-22761 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-22761 being exploited?

There is no known exploitation of CVE-2021-22761 in the wild and no public exploit code.

Sources

Also known as GHSA-vxhv-56jq-g8cw.