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CVE-2021-42540

25
FAUCET Score

CVE-2021-42540 is a high-severity vulnerability affecting several Emerson Wireless Gateway products, including the 1410, 1410D, and 1420 series. It stems from an unsanitized extract folder for system configuration, allowing a low-privileged user to overwrite critical settings and functionality. With a CVSS score of 8.8, this vulnerability presents a significant risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not widely known or exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.7.94CPE matchmatch criteria
cpe:2.3:o:emerson:wireless_1410_gateway_firmware:*:*:*:*:*:*:*:*
< 4.7.94CPE matchmatch criteria
cpe:2.3:o:emerson:wireless_1410d_gateway_firmware:*:*:*:*:*:*:*:*
< 4.7.94CPE matchmatch criteria
cpe:2.3:o:emerson:wireless_1420_gateway_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 54th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

us-cert.cisa.gov / ics/advisories/icsa-21-278-02
PatchThird Party AdvisoryUS Government Resource