What’s Vulnerable › Vulnerabilities

CVE-2021-42540: Emerson WirelessHART Gateway

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-22 · updated 2026-06-17
• Weakness: CWE-123

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.

Affected products

• Emerson Wireless 1410 Gateway Firmware: before 4.7.94 — fixed in 4.7.94
• Emerson Wireless 1410D Gateway Firmware: before 4.7.94 — fixed in 4.7.94
• Emerson Wireless 1420 Gateway Firmware: before 4.7.94 — fixed in 4.7.94

How to fix

Upgrade to a fixed version: Emerson Wireless 1410 Gateway Firmware 4.7.94; Emerson Wireless 1410D Gateway Firmware 4.7.94; Emerson Wireless 1420 Gateway Firmware 4.7.94. Check the vendor advisory for mitigations.

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02
• https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02

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