IRONSMITHINTEL
CRITICALCVSS9.8
|
Actively Exploited
|CISA KEV|CVE-2019-7256|Auth: none — unauthenticated|Reboot: required|Manual only

Nice Linear eMerge E3-Series OS Command Injection Vulnerability

Nice Linear eMerge E3-Series contains an OS command injection vulnerability that allows an attacker to conduct remote code execution.

Published Jul 2, 2019 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2024-04-15 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a OS Command Injection (CWE-78) vulnerability in Nice Linear eMerge E3-Series. Linear eMerge E3-Series devices allow Command Injections. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

📧

Phishing link

🖼

Malicious file

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Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

IT Security
Running linear emerge essential firmware: v ≤ 1.00-06; linear emerge elite firmware: v ≤ 1.00-06
Real-world incidentsWhat we've seen

Active exploitation documented in the wild. Threat-research write-up: http://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card_scan.php-Command-Injection.html

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Contact the vendor for guidance on remediating firmware, per their advisory.

References

    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2019-7256
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-7256
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