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Fencer Vulns
high 8.1

CVE-2018-20219 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-2018-12786

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.6%
EPSS 14.6% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

Timeline

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

Exploit prediction

14.55% chance of exploitation in the next 30 days, higher than 96% 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

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

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.