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

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-08-15 · updated 2026-08-20
Weakness: CWE-259

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.

Affected products

LB-LINK X-PRO: 1.0.22-20231206

References

https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.md
https://vuldb.com/cve/CVE-2026-19900
https://vuldb.com/submit/870712
https://vuldb.com/vuln/390090
https://vuldb.com/vuln/390090/cti

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