{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31904","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","state":"PUBLISHED","assignerShortName":"icscert","dateReserved":"2026-03-12T16:52:46.513Z","datePublished":"2026-03-20T22:45:17.571Z","dateUpdated":"2026-03-23T14:16:28.724Z"},"containers":{"cna":{"providerMetadata":{"orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","shortName":"icscert","dateUpdated":"2026-03-20T22:45:17.571Z"},"title":"CTEK Chargeportal Improper Restriction of Excessive Authentication Attempts","datePublic":"2026-03-19T16:18:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-307","description":"CWE-307","type":"CWE"}]}],"affected":[{"vendor":"CTEK","product":"Chargeportal","versions":[{"status":"affected","version":"All versions","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"The WebSocket Application Programming Interface lacks restrictions on the number of&nbsp;authentication requests. This absence of rate limiting may allow an attacker to conduct&nbsp;denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access."}]}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-06"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-078-06.json"},{"url":"https://www.ctek.com/support"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"workarounds":[{"lang":"en","value":"CTEK will be sunsetting this product in April 2026. Please contact CTEK for more information  https://www.ctek.com/support .","supportingMedia":[{"type":"text/html","base64":false,"value":"CTEK will be sunsetting this product in April 2026. Please contact CTEK for more information&nbsp;<a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ctek.com/support\">https://www.ctek.com/support</a>."}]}],"credits":[{"lang":"en","value":"Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA.","type":"finder"}],"source":{"advisory":"ICSA-26-078-06","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-23T14:16:18.382158Z","id":"CVE-2026-31904","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-23T14:16:28.724Z"}}]}}