CVE-2021-42536 Emerson WirelessHART Gateway

High 8.0 Published 22 Oct 2021 Updated 17 Sep 2024

Attackers can read global variables to disclose peer usernames and passwords in Emerson WirelessHART Gateways.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-42536?

CVE-2021-42536 is a high-severity vulnerability in Emerson WirelessHART Gateway, published on 22 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.

Weakness: CWE-668, CWE-200

Which versions are affected by CVE-2021-42536?

It affects 3 products.

Products include Emerson Wireless 1410 Gateway Firmware, Emerson Wireless 1410d Gateway Firmware, Emerson Wireless 1420 Gateway Firmware.

How do I fix CVE-2021-42536?

No fix has been published for CVE-2021-42536 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-42536 being exploited?

There is no known exploitation of CVE-2021-42536 in the wild and no public exploit code.

Sources

Also known as GHSA-5r3g-xh79-r442.