TI-2026-16133 Aliases CVE-2026-19900 GHSA-6pw8-xc67-fhhg

LB-LINK X-PRO shadow hard-coded credentials

HIGH 75CWE-259Published 2026-08-15 · Updated 2026-08-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-259.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.02941 87th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
LB-LINK	X-PRO	1.0.22-20231206	—	No fix listed	CNA

X-PRO VendorLB-LINK Affected 1.0.22-20231206 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:lb-link:x-pro::::::::	—	—	LB-LINK

cpe:2.3:a:lb-link:x-pro:*:*:*:*:*:*:*:* Versions — — ·LB-LINK

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-19900
2026-10-03 Alias added: GHSA-6pw8-xc67-fhhg

References

Exploit 1

https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.md

TI-2023-11781 LB-LINK BL-AC1900_2.0 v1.0.1, LB-LINK BL-WR9000 v2.4.9, LB-LINK BL-X26 v1.2.5, and… CVSS 3.1CRITICAL 9.8
TI-2025-20979 An issue in BL-AC2100 V1.0.4 and before allows a remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
TI-2025-20978 An issue in BL-AC2100 <=V1.0.4 allows a remote attacker to execute arbitrary code via the… CVSS 3.1CRITICAL 9.8
TI-2025-06911 LB-LINK BL-WR9000 Web Interface lighttpd.cgi restore improper authentication CVSS 4.0CRITICAL 9.3
TI-2025-35494 The LB-Link BL-CPE300M AX300 4G LTE Router firmware version… CVSS 3.1HIGH 8.8
TI-2024-34368 LB-LINK BL-WR 1300H v.1.0.4 contains hardcoded credentials stored in /etc/shadow which are easily guessable. CVSS 3.1CRITICAL 9.8

See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences