CVE-2021-22802 Memory corruption in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

Critical 9.8 Published 11 Feb 2022 Updated 3 Aug 2024

Remote attackers can execute arbitrary code on Schneider Electric SCADA data collectors by sending crafted network messages due to a buffer overflow.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22802?

CVE-2021-22802 is a critical memory corruption vulnerability in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior), published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length check on user supplied data, when a constructed message is received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

Weakness: CWE-120

Which versions are affected by CVE-2021-22802?

It affects 1 product.

Products include Schneider-Electric Interactive Graphical Scada System Data Collector.

How do I fix CVE-2021-22802?

No fix has been published for CVE-2021-22802 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-2021-22802 being exploited?

There is no known exploitation of CVE-2021-22802 in the wild and no public exploit code.

Sources

Also known as GHSA-frmp-r2qj-7qjr.