# CVE-2019-7256: Nice Linear eMerge E3-Series OS Command Injection Vulnerability

> CVE-2019-7256: Nice Linear eMerge E3-Series OS Command Injection Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-7256
Last updated: 2025-10-21T23:45:34Z

- Published: 2019-07-02 00:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 97.1%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-03-25, federal due date 2024-04-15, ransomware use: Unknown

## Description

Linear eMerge E3-Series devices allow Command Injections.

## CISA required action

Contact the vendor for guidance on remediating firmware, per their advisory.

## Affected vendors and products

- nortekcontrol: linear\_emerge\_elite\_firmware
- nortekcontrol: linear\_emerge\_essential\_firmware

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-7256)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-7256)
- [http://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card\_scan.php-Command-Injection.html](http://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card_scan.php-Command-Injection.html)
- [http://packetstormsecurity.com/files/155256/Linear-eMerge-E3-1.00-06-card\_scan\_decoder.php-Command-Injection.html](http://packetstormsecurity.com/files/155256/Linear-eMerge-E3-1.00-06-card_scan_decoder.php-Command-Injection.html)
- [http://packetstormsecurity.com/files/155272/Linear-eMerge-E3-Access-Controller-Command-Injection.html](http://packetstormsecurity.com/files/155272/Linear-eMerge-E3-Access-Controller-Command-Injection.html)
- [http://packetstormsecurity.com/files/170372/Linear-eMerge-E3-Series-Access-Controller-Command-Injection.html](http://packetstormsecurity.com/files/170372/Linear-eMerge-E3-Series-Access-Controller-Command-Injection.html)
- [https://applied-risk.com/labs/advisories](https://applied-risk.com/labs/advisories)
- [https://www.applied-risk.com/resources/ar-2019-005](https://www.applied-risk.com/resources/ar-2019-005)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2019-7256 · Markdown: https://rewindex.com/cve/CVE-2019-7256.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-7256 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:04.249Z