EUVD-2026-59776
GHSA-6pw8-xc67-fhhg
Severity by source
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable hardcoded credential requires no privileges or interaction, but AC:H reflects the credential-extraction step; full C/I/A impact on the device once authenticated.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Hard-coded credentials embedded in the /etc/shadow file of the LB-LINK X-PRO wireless router (firmware 1.0.22-20231206) allow remote attackers who obtain those static credentials to authenticate to the device's management interface without any privilege requirement. The affected product is also marketed as the B-Link AC1200 X-PRO (model AC6). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target must be a LB-LINK X-PRO router running firmware version 1.0.22-20231206, with its management interface network-reachable by the attacker - either over WAN if remote management is enabled, or over LAN if the attacker has already gained local network presence. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 8.2 with full vulnerable-system impact (VC:H/VI:H/VA:H) accurately reflects the severity once exploitation succeeds, but the AC:H metric requires nuanced interpretation: at the time of firmware analysis, extracting and cracking the hardcoded hash was a meaningful complexity barrier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis - the vendor did not respond to the researcher's disclosure, and no patched firmware version is referenced in any available source. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all LB-LINK X-PRO and B-Link AC1200 X-PRO (model AC6) devices on the network and immediately disable remote management access to these devices' administrative interfaces. …
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Same weakness CWE-259 – Use of Hard-coded Password
View allSame technique Authentication Bypass
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External POC / Exploit Code
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