Wireless 1420 Gateway Firmware
CVE-2021-42539
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could access critical functionality without authentication by sending crafted requests to the affected application. |
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Alert meAnalysisAI
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Missing Authentication for Critical Function vulnerability could allow attackers to access critical functionality without authentication.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Require authentication for all sensitive operations, implement defense in depth.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change. Affected products include: Emerson Wireless 1410 Gateway Firmware, Emerson Wireless 1410D Gateway Firmware, Emerson Wireless 1420 Gateway Firmware.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure. Rated
The affected product is vulnerable to a unsanitized extract folder for system configuration. Rated high severity (CVSS 8
The affected product is vulnerable to a parameter injection via passphrase, which enables the attacker to supply uncontr
The affected product is vulnerable to improper input validation in the restore file. Rated high severity (CVSS 8.8), thi
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read gl
GitHub PoC
Exploit-DB