CVE-2021-42542 json
Emerson WirelessHART Gateway
published 2021-10-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29511
- cvss
- 8.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure.
Patch / fix
- emerson wireless_1410_gateway_firmware 4.7.94
- emerson wireless_1410d_gateway_firmware 4.7.94
- emerson wireless_1420_gateway_firmware 4.7.94
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 cvss 8.0
Emerson WirelessHART Gateway
-
Emerson WirelessHART 1410 Gateway < 4.7.94 Emerson WirelessHART 1410D Gateway < 4.7.94 Emerson WirelessHART 1420 Gateway < 4.7.94affected: 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
1.48% chance of exploitation in the next 30 days, higher than 74% 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 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- Emerson WirelessHART Gateway
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
us-cert.cisa.gov
/ics/advisories/icsa-21-278-02
patch, third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-42542
- NVD CVE-2021-42542
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.