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Fencer Vulns
low 3.8

CVE-2023-37857 json

PHOENIX CONTACT: Use of Hard-coded Credentials in WP 6xxx Web panels

published 2023-08-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-41731

cvss
3.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

In PHOENIX CONTACTs WP 6xxx series web panels in versions prior to 4.0.10 an authenticated, remote attacker with admin privileges is able to read hardcoded cryptographic keys allowing the attacker to create valid session cookies. These session-cookies created by the attacker are not sufficient to obtain a valid session on the device.

Patch / fix

  • PHOENIX CONTACT WP 6070-WVPS 4.0.10
  • PHOENIX CONTACT WP 6101-WXPS 4.0.10
  • PHOENIX CONTACT WP 6121-WXPS 4.0.10
  • PHOENIX CONTACT WP 6156-WHPS 4.0.10
  • PHOENIX CONTACT WP 6185-WHPS 4.0.10
  • PHOENIX CONTACT WP 6215-WHPS 4.0.10

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • PHOENIX CONTACT WP 6070-WVPS
  • PHOENIX CONTACT WP 6101-WXPS
  • PHOENIX CONTACT WP 6121-WXPS
  • PHOENIX CONTACT WP 6156-WHPS
  • PHOENIX CONTACT WP 6185-WHPS
  • PHOENIX CONTACT WP 6215-WHPS

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.