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I. Basic Information for CVE-2026-31904
Vulnerability Information

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Vulnerability Title
CTEK Chargeportal Improper Restriction of Excessive Authentication Attempts
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
过多认证尝试的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
CTEK Chargeportal 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CTEK Chargeportal是瑞典CTEK公司的一个电动车充电管理平台。 CTEK Chargeportal存在安全漏洞,该漏洞源于WebSocket应用程序编程接口缺少对身份验证请求数量的限制,可能导致攻击者进行拒绝服务攻击或暴力破解攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
CTEKChargeportal All versions -
II. Public POCs for CVE-2026-31904
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III. Intelligence Information for CVE-2026-31904
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IV. Related Vulnerabilities
V. Comments for CVE-2026-31904

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