CVE-2021-42540

Emerson WirelessHART Gateway

Description

The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.

Remediation

Solution:

  • Emerson recommends upgrading to v4.7.105 to address these vulnerabilities. Users can visit the Emerson Gate Firmware site for and download instructions. If affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Third-Party Advisory cisa.gov
Affected: Emerson WirelessHART Gateway
Published at:
Updated at:

References

Link Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02 us government resource third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-42540?
CVE-2021-42540 has been scored as a high severity vulnerability.
How to fix CVE-2021-42540?
To fix CVE-2021-42540: Emerson recommends upgrading to v4.7.105 to address these vulnerabilities. Users can visit the Emerson Gate Firmware site for and download instructions. If affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide.
Is CVE-2021-42540 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-42540 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-42540?
CVE-2021-42540 affects Emerson WirelessHART Gateway.
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