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

Source: https://junglewise.ai/threats/cve-2019-7256-nice-linear-emerge-e3-series-os-command-injection-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-03-25. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2019-7256 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2024-03-25

Nice Linear eMerge E3-Series access controllers contain an OS command injection vulnerability in multiple PHP scripts, including card_scan.php and card_scan_decoder.php. This flaw allows unauthenticated remote attackers to execute arbitrary commands on the underlying operating system with elevated privileges.

## Quick answers

**Is CVE-2019-7256 exploited in the wild?** Yes. CVE-2019-7256 is known to be exploited in the wild, first recorded on 25 March 2024. Treat it as urgent.

**How severe is CVE-2019-7256?** Critical severity, with a CVSS score of 9.8, published 25 March 2024.

**Which products and versions are affected?** Nice Linear eMerge E3-Series 1.00-06.

**Is there a fix for CVE-2019-7256?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2019-7256 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2019-7256?** Check whether you run Nice Linear Emerge E3-Series. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Nice Linear eMerge E3-Series 1.00-06

## Timeline

- 2019-11-12: disclosed: Initial public disclosure of exploit via Packet Storm
- 2024-03-25: kev added: Added to CISA Known Exploited Vulnerabilities (KEV) catalog
- 2024-03-25: advisory: NVD publication date
- 2024-03-25: exploited: Confirmed exploited in the wild per CISA KEV entry