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Linear Emerge Essential Firmware CVE-2019-7256

CRITICAL
OS Command Injection (CWE-78)
2019-07-02 cve@mitre.org
Command Injection Linear Emerge Essential Firmware Linear Emerge Elite Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Added to CISA KEV
Jul 14, 2026 - 04:22 CISA
CVE Published
Jul 02, 2019 - 19:15 nvd
CRITICAL 9.8

DescriptionNVD

Linear eMerge E3-Series devices allow Command Injections.

AnalysisAI

Linear eMerge E3-Series devices allow Command Injections. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. Affected products include: Nortekcontrol Linear Emerge Essential Firmware, Nortekcontrol Linear Emerge Elite Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

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CVE-2019-7257 CRITICAL POC
10.0 Jul 02

Linear eMerge E3-Series devices allow Unrestricted File Upload. Rated critical severity (CVSS 10.0), this vulnerability

CVE-2019-7261 CRITICAL POC
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Linear eMerge E3-Series devices have Hard-coded Credentials. Rated critical severity (CVSS 9.8), this vulnerability is r
CVE-2019-7265 CRITICAL POC
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Linear eMerge E3-Series devices allow Remote Code Execution (root access over SSH). Rated critical severity (CVSS 9.8),

CVE-2019-7258 HIGH POC
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Linear eMerge E3-Series devices allow Privilege Escalation. Rated high severity (CVSS 8.8), this vulnerability is remote
CVE-2019-7262 HIGH POC
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Linear eMerge E3-Series devices allow Cross-Site Request Forgery (CSRF). Rated high severity (CVSS 8.8), this vulnerabil
CVE-2019-7259 HIGH POC
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Linear eMerge E3-Series devices allow Authorization Bypass with Information Disclosure. Rated high severity (CVSS 8.8),

CVE-2019-7254 HIGH POC
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Linear eMerge E3-Series devices allow File Inclusion. Rated high severity (CVSS 7.5), this vulnerability is remotely exp
CVE-2019-7255 MEDIUM POC
6.1 Jul 02

Linear eMerge E3-Series devices allow XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable,
CVE-2019-7253 CRITICAL
9.8 Jul 02

Linear eMerge E3-Series devices allow Directory Traversal. Rated critical severity (CVSS 9.8), this vulnerability is rem
CVE-2019-7252 CRITICAL
9.8 Jul 02

Linear eMerge E3-Series devices have Default Credentials. Rated critical severity (CVSS 9.8), this vulnerability is remo
CVE-2019-7260 CRITICAL
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Linear eMerge E3-Series devices have Cleartext Credentials in a Database. Rated critical severity (CVSS 9.8), this vulne
CVE-2019-7264 CRITICAL
9.8 Jul 02

Linear eMerge E3-Series devices allow a Stack-based Buffer Overflow on the ARM platform. Rated critical severity (CVSS 9

Same weakness CWE-78 – OS Command Injection

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Same technique Command Injection

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CVE-2012-1823 CRITICAL POC
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CVE-2019-7256 vulnerability details – vuln.today
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