Emerson WirelessHART Gateway

published 2021-10-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29505

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

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

Patch / fix

fixed in 3 links 1

emerson wireless_1410_gateway_firmware 4.7.94
emerson wireless_1410d_gateway_firmware 4.7.94
emerson wireless_1420_gateway_firmware 4.7.94

us-cert.cisa.gov/ics/advisories/icsa-21-278-02 advisory

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-278-02 updated 2021-10-05 cvss 8.0

Emerson WirelessHART Gateway

Emerson WirelessHART 1410 Gateway < 4.7.94 Emerson WirelessHART 1410D Gateway < 4.7.94 Emerson WirelessHART 1420 Gateway < 4.7.94
affected: mitigation “Emerson recommends upgrading to v4.7.105 to address these vulnerabilities.” go.emersonautomation.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

Emerson WirelessHART Gateway

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-668 Exposure of Resource to Wrong Sphere

References

us-cert.cisa.gov /ics/advisories/icsa-21-278-02
patch, third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-42536
NVD CVE-2021-42536

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary