CVE-2020-12030

Name: CVE-2020-12030
Creator: NVD / NIST
Published: 2021-09-29T20:15:07.87+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2020-12030 is a critical-severity vulnerability rated 10/10 on the CVSS scale. There is a flaw in the code used to configure the internal gateway firewall when the gateway's VLAN feature is enabled. If a user enables the VLAN setting, the internal gateway firewall becomes disabled resulting in exposure of all ports used by the gateway.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

There is a flaw in the code used to configure the internal gateway firewall when the gateway's VLAN feature is enabled. If a user enables the VLAN setting, the internal gateway firewall becomes disabled resulting in exposure of all ports used by the gateway.

Metrics

CVSS 3.1

10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.05%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Emerson	Wireless 1410 Gateway Firmware	>= 4.6.43, <= 4.7.84
Emerson	Wireless 1420 Gateway Firmware	>= 4.6.43, <= 4.7.84
Emerson	Wireless 1552wu Gateway Firmware	>= 4.6.43, <= 4.7.84

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-135-02Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-135-02Third Party Advisory, US Government Resource

Timeline

Published: Sep 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12030?

How severe is CVE-2020-12030?

CVE-2020-12030 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12030?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12030?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST