What is CVE-2026-28204?

CVE-2026-28204 is a medium-severity vulnerability in Ctek Chargeportal, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-03-20.

How severe is CVE-2026-28204?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Ctek Chargeportal

CVE-2026-28204

Charging station authentication identifiers are publicly accessible via web-based mapping platforms.

EPSS: 0.001 (18.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Ctek Chargeportal — versions All versions

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

www.cisa.gov/news-events/ics-advisories/icsa-26-078-06
github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.js…
www.ctek.com/support

Frequently asked questions

What is CVE-2026-28204?: CVE-2026-28204 is a medium-severity vulnerability in Ctek Chargeportal, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-03-20.
How severe is CVE-2026-28204?: Medium severity. CVSS v3 base score is 6.5 out of 10.