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CVE-2026-76943— Xiiaozet LK100W Authentication Bypass Using an Alternate Path or Channel

Quick assessment

Affected
Xiiaozet Xiiaozet LK100W
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.

Xiiaozet LK100Wt 在其管理服务中存在认证机制缺陷，这可能允许攻击者绕过既定的访问控制，从而获得命令执行能力。成功利用该漏洞后，攻击者可以未经授权地访问特权功能，并可能导致设备被完全攻陷。

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-76943

Vulnerability Information
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Vulnerability Title
Xiiaozet LK100W Authentication Bypass Using an Alternate Path or Channel
Source: CVE Program / CVE List V5
Vulnerability Description
Xiiaozet LK100Wt contains an authentication weakness within an administrative service that may allow an attacker to bypass intended access controls and obtain command execution capabilities. Successful exploitation could allow unauthorized interaction with privileged functionality and may lead to complete device compromise.
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
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Xiiaozet Xiiaozet LK100W 0 ~ 2.1.240 -

II. Public POCs for CVE-2026-76943

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III. Intelligence Information for CVE-2026-76943

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Patches & Fixes for CVE-2026-76943 (1)

Vendor Advisories for CVE-2026-76943 (1)

Same Patch Batch · Xiiaozet · 2026-08-27 · 3 CVEs total

CVE-2026-78239 9.8 CRITICAL Xiiaozet LK100W Missing Authentication for Critical Function
CVE-2026-78037 8.8 HIGH Xiiaozet LK100W OS Command Injection

IV. Related Vulnerabilities

Same product: Xiiaozet LK100W
Same vendor: Xiiaozet
Same weakness: CWE-288

V. Comments for CVE-2026-76943

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