Description
A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded credentials. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
lb-link: bl-ac3600 firmware; lb-link: bl-ac3600
References7
- github.com/waiwai24/0101/blob/main/CVEs/Blink/Hardcoded_Credent… ExploitThird Party Advisory
- github.com/waiwai24/0101/blob/main/CVEs/Blink/Hardcoded_Credent… ExploitThird Party Advisory
- github.com/waiwai24/0101/blob/main/CVEs/Blink/Hardcoded_Credent… ExploitThird Party Advisory
- github.com/waiwai24/0101/blob/main/CVEs/Blink/Hardcoded_Credent… ExploitThird Party Advisory
- vuldb.com/?ctiid.316262 Permissions RequiredVDB Entry
- vuldb.com/?id.316262 Third Party AdvisoryVDB Entry
- vuldb.com/?submit.605630 Third Party AdvisoryVDB Entry
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
7.1
HIGH
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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 - EPSS — exploit probability
- 0% percentile: 20 · as of 7 November 2026
- CWE
- CWE-259CWE-798
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.