CVE-2026-19900
CriticalPublic exploitThe manipulation leads to hard-coded credentials.
Published Aug 15, 2026 · Updated Aug 20, 2026
Key Facts
Patch immediately- CVE-2026-19900 is a critical-severity vulnerability (CVSS 9.2 v4) affecting X-Pro (Lb-Link).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 2.9% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v4
9.2
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
EPSS (30-day exploit likelihood)
2.9%
Higher than 86.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-19900 brief as a PDF
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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
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| X-ProLb-Link | See advisory | n/a |
Timeline
Publicly disclosed
Aug 15, 2026
Last updated
Aug 20, 2026
Weakness Type
- CWE-259 Use of Hard-coded Password
- CWE-798 Use of Hard-coded Credentials
References
FAQ
Common Questions.
A vulnerability was identified in LB-LINK X-PRO 1.0.22-20231206.
Affected: X-Pro (Lb-Link). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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