LB-LINK X-PRO 1.0.22-20231206 /etc/shadow hard-coded credentials

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k2.30

Summaryinfo

A vulnerability categorized as critical has been discovered in LB-LINK X-PRO 1.0.22-20231206. This affects an unknown function of the file /etc/shadow. The manipulation results in hard-coded credentials. This vulnerability is known as CVE-2026-19900. It is possible to launch the attack remotely. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as critical, was found in LB-LINK X-PRO 1.0.22-20231206. Affected is an unknown functionality of the file /etc/shadow. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-19900. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.1
VulDB Temp Score: 7.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/14/2026 Advisory disclosed
08/14/2026 +0 days VulDB entry created
08/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-19900 (🔒)
GCVE (CVE): GCVE-0-2026-19900
GCVE (VulDB): GCVE-100-390090
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/14/2026 21:16
Changes: 08/14/2026 21:16 (56)
Complete: 🔍
Submitter: Yun Zhang
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #870712: LB-LINK（深圳必联电子） Router B-Link AC1200 X-PRO(AC6)_Dual_V1.0.22-20231206 Hardcoded Credentials (by Yun Zhang)

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