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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 LK100W是Xiiaozet公司的一款打印机。 Xiiaozet LK100W 2.1.240之前版本存在授权问题漏洞，该漏洞源于管理服务存在身份验证弱点，可能导致攻击者绕过访问控制并获得命令执行能力，进而可能导致设备完全沦陷。

CVSS 9.8 · Critical EPSS 1.04% · P64

Affected Version Matrix 2

VendorProduct Version RangeStatus
Xiiaozet Xiiaozet LK100W < 2.1.240 affected
2.1.240 unaffected
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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
Vulnerability Title
Xiiaozet LK100W 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xiiaozet LK100W是Xiiaozet公司的一款打印机。 Xiiaozet LK100W 2.1.240之前版本存在授权问题漏洞，该漏洞源于管理服务存在身份验证弱点，可能导致攻击者绕过访问控制并获得命令执行能力，进而可能导致设备完全沦陷。
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

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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