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CVE-2019-7256

99
FAUCET Score

CVE-2019-7256 is a critical command injection vulnerability affecting Nortek Control Linear eMerge E3-Series access control devices. This flaw allows unauthenticated attackers to execute arbitrary commands remotely, leading to complete compromise of the affected systems. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, with public exploit code available in Metasploit and Nuclei templates, and has garnered significant community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.00-06CPE matchmatch criteria
cpe:2.3:o:nortekcontrol:linear_emerge_essential_firmware:*:*:*:*:*:*:*:*
<= 1.00-06CPE matchmatch criteria
cpe:2.3:o:nortekcontrol:linear_emerge_elite_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
97.14%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Mar 25, 2024
Metasploit: Linear eMerge E3-Series Access Controller Command Injection · Oct 29, 2019
Nuclei: CVE-2019-7256 · Sep 6, 2020
ExploitDB: EDB-47619 · Nov 12, 2019
This CVE's current EPSS score of 0.9714 is in the 99th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/155255/Linear-eMerge-E3-1.00-06-card_scan.php-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/155256/Linear-eMerge-E3-1.00-06-card_scan_decoder.php-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/155272/Linear-eMerge-E3-Access-Controller-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/170372/Linear-eMerge-E3-Series-Access-Controller-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
applied-risk.com / labs/advisories
Not Applicable
applied-risk.com / resources/ar-2019-005
Third Party Advisory