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CVE-2026-19900— LB-LINK X-PRO shadow hard-coded credentials

Quick assessment

Affected
LB-LINK X-PRO
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LB-LINK x-pro是中国LB-LINK公司的一款网络服务器设备。 LB-LINK x-pro 1.0.22-20231206版本存在信任管理问题漏洞，该漏洞源于文件/etc/shadow存在硬编码凭据，可能导致远程攻击者利用此漏洞进行未授权访问。

CVSS 8.1 · High EPSS 2.24% · P82

Public Exploits 1

Nuclei · 1 CVE-2026-19900.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
LB-LINK X-PRO 1.0.22-20231206 affected
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I. Basic Information for CVE-2026-19900

Vulnerability Information
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Vulnerability Title
LB-LINK X-PRO shadow hard-coded credentials
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in LB-LINK X-PRO 1.0.22-20231206. The impacted element is an unknown function of the file /etc/shadow. The manipulation leads to hard-coded credentials. It is possible to initiate the attack remotely. A high degree of complexity is needed for the attack. The exploitability is regarded as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
LB-LINK x-pro 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LB-LINK x-pro是中国LB-LINK公司的一款网络服务器设备。 LB-LINK x-pro 1.0.22-20231206版本存在信任管理问题漏洞，该漏洞源于文件/etc/shadow存在硬编码凭据，可能导致远程攻击者利用此漏洞进行未授权访问。
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
LB-LINK X-PRO 1.0.22-20231206 cpe:2.3:a:lb-link:x-pro:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19900

# POC Description Source Link Shenlong Link
1 LB-LINK X-PRO 1.0.22-20231206 contains a hardcoded credentials vulnerability caused by manipulation of an unknown function in /etc/shadow, letting remote attackers use hardcoded credentials, exploit requires high complexity https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-19900.yaml POC Details
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 8814 chars
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III. Intelligence Information for CVE-2026-19900

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Proof of Concept for CVE-2026-19900 (1)

IV. Related Vulnerabilities

Same product: X-PRO
Same vendor: LB-LINK
Same weakness: CWE-798

V. Comments for CVE-2026-19900

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