CVE-2019-7256
CriticalExploitedPublic exploitLinear eMerge E3-Series devices allow Command Injections.
Published Jul 2, 2019 · Updated Nov 6, 2025
Key Facts
Patch immediately- CVE-2019-7256 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Linear Emerge Elite Firmware (Nortekcontrol), Linear Emerge Essential Firmware (Nortekcontrol).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 1, 2020. Public exploit code is available.
- EPSS estimates a 97% probability of exploitation in the next 30 days.
- Fixed versions are available, including Linear Emerge Elite Firmware <=1.00-06, Linear Emerge Essential Firmware <=1.00-06, Linear Emerge Elite Firmware 1.00-06.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
97%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-7256 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Linear eMerge E3-Series devices allow Command Injections.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 25, 2024 | Apr 15, 2024 | Not reported |
| Industry KEV feed | Feb 1, 2020 | Apr 15, 2024 | Not reported |
| CIRCL KEV | Oct 14, 2023 | Apr 15, 2024 | Not reported |
| ENISA EUVD | Mar 25, 2024 | n/a | Not reported |
Required action: Contact the vendor for guidance on remediating firmware, per their advisory.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Linear Emerge Elite FirmwareNortekcontrol | See advisory | 1.00-06 |
| Linear Emerge Essential FirmwareNortekcontrol | See advisory | 1.00-06 |
Patched Releases
Linear Emerge Elite Firmware
<=1.00-06
Linear Emerge Essential Firmware
<=1.00-06
Timeline
Publicly disclosed
Jul 2, 2019
Added to Industry KEV feed
Feb 1, 2020
Added to CIRCL KEV
Oct 14, 2023
Added to CISA KEV
Mar 25, 2024
Added to ENISA EUVD
Mar 25, 2024
Last updated
Nov 6, 2025
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://www.applied-risk.com/resources/ar-2019-005
- exploithttp://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card_scan.php-Command-Injection.html
- exploithttp://packetstormsecurity.com/files/155256/Linear-eMerge-E3-1.00-06-card_scan_decoder.php-Command-Injection.html
- exploithttp://packetstormsecurity.com/files/155272/Linear-eMerge-E3-Access-Controller-Command-Injection.html
- exploithttp://packetstormsecurity.com/files/170372/Linear-eMerge-E3-Series-Access-Controller-Command-Injection.html
FAQ
Common Questions.
Linear eMerge E3-Series devices allow Command Injections.
Affected: Linear Emerge Elite Firmware (Nortekcontrol); Linear Emerge Essential Firmware (Nortekcontrol). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 1, 2020.
Yes. It was added on Mar 25, 2024 with a federal remediation due date of Apr 15, 2024.
Public exploit code is available.
Fixed versions are available, including Linear Emerge Elite Firmware <=1.00-06, Linear Emerge Essential Firmware <=1.00-06, Linear Emerge Elite Firmware 1.00-06.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2019-7256 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo