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Fencer Vulns
critical 9.8

CVE-2018-20218 in the critical feed json

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below.

published 2019-03-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12785

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.7%
EPSS 10.7% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. The login form passes user input directly to a shell command without any kind of escaping or validation in /usr/share/www/check.lp file. An attacker is able to perform command injection using the "password" parameter in the login form.

Timeline

  1. First public exploit (EDB-46451)
  2. Published

Exploit prediction

10.73% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46451 Teracue ENC-400 - Command Injection / Missing Authentication webapps, 2019-02-22
  • seclists.org http://seclists.org/fulldisclosure/2019/Feb/48 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/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

Classification

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

References

Sources

Fencer Vulns 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.