CVE-2026-19900
LB-LINK X-PRO shadow hard-coded credentials
- State
- Published
- Severity
- 9.2 Critical
- Published
- Aug 15, 2026
- Updated
- Aug 17, 2026
- Reserved
- Aug 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 8.1 High | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.6 High | AV:N/AC:H/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
X-PROLB-LINK |
|
References
- VDB-390090 | LB-LINK X-PRO shadow hard-coded credentialsvdb-entry
- VDB-390090 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-19900 | CVE Analysis and Reportthird-party-advisory
- Submit #870712 | LB-LINK（深圳必联电子） Router B-Link AC1200 X-PRO(AC6)_Dual_V1.0.22-20231206 Hardcoded Credentialsthird-party-advisory
- https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.mdexploit
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