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CVE-2026-20748— Everon api.everon.io Insufficient Session Expiration

CVSS 7.3 · High EPSS 0.05% · P15
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I. Basic Information for CVE-2026-20748

Vulnerability Information
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Vulnerability Title
Everon api.everon.io Insufficient Session Expiration
Source: NVD (National Vulnerability Database)
Vulnerability Description
The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的会话过期机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Everon 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Everon是Everon公司的一个电动汽车充电站系统。 Everon存在代码问题漏洞，该漏洞源于WebSocket后端使用可预测的会话标识符，可能导致会话劫持或影子攻击，进而导致拒绝服务或未经授权的身份验证。
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
Everonapi.everon.io All versions -

II. Public POCs for CVE-2026-20748

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III. Intelligence Information for CVE-2026-20748

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Same Patch Batch · Everon · 2026-03-06 · 4 CVEs total

CVE-2026-262889.4 CRITICALEveron api.everon.io Missing Authentication for Critical Function
CVE-2026-246967.5 HIGHEveron api.everon.io Improper Restriction of Excessive Authentication Attempts
CVE-2026-270276.5 MEDIUMEveron api.everon.io Insufficiently Protected Credentials

IV. Related Vulnerabilities

Same product: api.everon.io
Same vendor: Everon
Same weakness: CWE-613

V. Comments for CVE-2026-20748

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