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CVE-2026-25084— ZLAN Information Technology ZLAN5143D Missing Authentication for Critical Function

Quick assessment

Affected
ZLAN Information Technology Co. ZLAN5143D
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZLAN5143D是中国卓岚（ZLAN）公司的一个串口服务器。 ZLAN5143D存在访问控制错误漏洞，该漏洞源于身份验证可被绕过，可能导致攻击者直接访问内部URL。

CVSS 9.8 · Critical EPSS 0.81% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-25084

Vulnerability Information
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Vulnerability Title
ZLAN Information Technology ZLAN5143D Missing Authentication for Critical Function
Source: CVE Program / CVE List V5
Vulnerability Description
Authentication for ZLAN5143D can be bypassed by directly accessing internal URLs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
ZLAN5143D 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZLAN5143D是中国卓岚（ZLAN）公司的一个串口服务器。 ZLAN5143D存在访问控制错误漏洞，该漏洞源于身份验证可被绕过，可能导致攻击者直接访问内部URL。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
ZLAN Information Technology Co. ZLAN5143D v1.600 -

II. Public POCs for CVE-2026-25084

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III. Intelligence Information for CVE-2026-25084

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Vendor Advisories for CVE-2026-25084 (1)

IV. Related Vulnerabilities

Same product: ZLAN5143D
Same vendor: ZLAN Information Technology Co.
Same weakness: CWE-306

V. Comments for CVE-2026-25084

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