CVE-2026-31904
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| CTEK | Chargeportal | All versions | affected |
Weaknesses
- CWE-307: CWE-307
Workarounds
CTEK will be sunsetting this product in April 2026. Please contact CTEK for more information https://www.ctek.com/support .
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-06
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json
- https://www.ctek.com/support
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