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

Linear eMerge E3-Series devices allow Command Injections.

01What is this vulnerability?

Linear eMerge E3-Series devices allow Command Injections.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2024-03-25. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-07-02T00:00:00.000Z
• Last modified: 2025-10-21T23:45:34.488Z
• Added to CISA KEV: 2024-03-25
• BOD 22-01 due: 2024-04-15

09References

• applied-risk.com — https://applied-risk.com/labs/advisories
• www.applied-risk.com — https://www.applied-risk.com/resources/ar-2019-005
• packetstormsecurity.com — http://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card_scan.p…
• packetstormsecurity.com — http://packetstormsecurity.com/files/155256/Linear-eMerge-E3-1.00-06-card_scan_d…
• packetstormsecurity.com — http://packetstormsecurity.com/files/155272/Linear-eMerge-E3-Access-Controller-C…
• packetstormsecurity.com — http://packetstormsecurity.com/files/170372/Linear-eMerge-E3-Series-Access-Contr…