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Fencer Intel
critical 9.8

CVE-2019-7256 kev in the critical feed json

Linear eMerge E3-Series devices allow Command Injections.

published 7y ago modified 4mo ago also EUVD-2019-16800

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2024-03-25
epss
97.1%
EPSS 97.1% chance of exploitation in 30 days, percentile 99.8%
public exploits
2
Metasploit and Exploit-DB, plus a Nuclei check

Summary

Linear eMerge E3-Series devices allow Command Injections.

Patch / fix

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

Is CVE-2019-7256 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-065-01 updated cvss 10.0

Nice Linear eMerge E3-Series

  • Nice Linear eMerge E3-Series <=1.00-06
    affected: mitigation “Nice/Nortek encourages users to upgrade to the latest firmware to mitigate the risk of these vulnerabilities. Please see Nice's E3-Bulletin for more information.” linear-solutions.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. Published
  2. First public exploit (Metasploit exploit/linux/http/linear_emerge_unauth_rce_cve_2019_7256)
  3. Added to CISA KEV
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
2y ago
Patch by
2024-04-15 (2y ago)
Ransomware
Not known
Required action
Contact the vendor for guidance on remediating firmware, per their advisory.
Vendor, product
Nice, Linear eMerge E3-Series
CISA name
Nice Linear eMerge E3-Series OS Command Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
2y ago

Exploit prediction

97.08% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/linux/http/linear_emerge_unauth_rce_cve_2019_7256 Linear eMerge E3-Series Access Controller Command Injection metasploit exploit, excellent rank, 2019-10-29
  • EDB-47619 eMerge E3 1.00-06 - Remote Code Execution webapps, 2019-11-12
  • Nuclei template eMerge E3 1.00-06 - Remote Code Execution nuclei detection template
  • packetstormsecurity.com http://packetstormsecurity.com/files/155255/Linear-eMerge-E3-1.00-06-card_scan.php-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/155256/Linear-eMerge-E3-1.00-06-card_scan_decoder.php-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/155272/Linear-eMerge-E3-Access-Controller-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/170372/Linear-eMerge-E3-Series-Access-Controller-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • nortekcontrol linear_emerge_essential_firmware
  • nortekcontrol linear_emerge_elite_firmware

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.