Wireless 1420 Gateway Firmware
CVE-2021-42538
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution 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 execute arbitrary operating system commands on the host by sending crafted requests to the affected application. |
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Alert meAnalysisAI
The affected product is vulnerable to a parameter injection via passphrase, which enables the attacker to supply uncontrolled input. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This OS Command Injection vulnerability could allow attackers to execute arbitrary operating system commands on the host.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
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 OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. The affected product is vulnerable to a parameter injection via passphrase, which enables the attacker to supply uncontrolled input. 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 parameter injection via passphrase, which enables the attacker to supply uncontrolled input.
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
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
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 missing permission validation on system backup restore, which could lead to acco
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