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Fencer Vulns
critical 9.8

CVE-2022-33174 in the critical feed json

Power Distribution Units running on Powertek firmware (multiple brands) before 3.30.30 allows remote authorization bypass in the web interf…

published 2022-06-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-36218

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
14.1%
EPSS 14.1% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known, plus a Nuclei check

Summary

Power Distribution Units running on Powertek firmware (multiple brands) before 3.30.30 allows remote authorization bypass in the web interface. To exploit the vulnerability, an attacker must send an HTTP packet to the data retrieval interface (/cgi/get_param.cgi) with the tmpToken cookie set to an empty string followed by a semicolon. This bypasses an active session authorization check. This can be then used to fetch the values of protected sys.passwd and sys.su.name fields that contain the username and password in cleartext.

Patch / fix

  • powertekpdus basic_pdu_firmware 3.30.30
  • powertekpdus pm_pdu_firmware 3.30.30
  • powertekpdus piml_pdu_firmware 3.30.30
  • powertekpdus smart_pim_firmware 3.30.30
  • powertekpdus smart_pos_firmware 3.30.30
  • powertekpdus smart_pom_firmware 3.30.30
  • powertekpdus smart_poms_firmware 3.30.30

Exploit prediction

14.12% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Powertek Firmware <3.30.30 - Authorization Bypass nuclei detection template
  • gynvael.coldwind.pl https://gynvael.coldwind.pl/?lang=en&id=748 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N
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 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

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.