Vulnerability-Lookup

CVE-2026-19900 (GCVE-0-2026-19900)

Vulnerability from cvelistv5 – Published: 2026-08-15 16:45 – Updated: 2026-08-15 16:45

Title

LB-LINK X-PRO shadow hard-coded credentials

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.

Severity

9.2 (Critical)


                        
                          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

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

8.1 (High)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

CWE

CWE-798 - Hard-coded Credentials
CWE-259 - Use of Hard-coded Password

Assigner

VulDB

References

5 references

URL	Tags
https://vuldb.com/vuln/390090	vdb-entry
https://vuldb.com/vuln/390090/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19900	third-party-advisory
https://vuldb.com/submit/870712	third-party-advisory
https://github.com/DavCloudz/cve/blob/main/B-Link…	exploit

Impacted products

1 product

Vendor	Product	Version
LB-LINK	X-PRO	Affected: 1.0.22-20231206 cpe:2.3:a:lb-link:x-pro::::::::

Credits

Yun Zhang (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:lb-link:x-pro:*:*:*:*:*:*:*:*"
          ],
          "product": "X-PRO",
          "vendor": "LB-LINK",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.22-20231206"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Yun Zhang (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.6,
            "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-798",
              "description": "Hard-coded Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-259",
              "description": "Use of Hard-coded Password",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-15T16:45:07.432Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-390090 | LB-LINK X-PRO shadow hard-coded credentials",
          "tags": [
            "vdb-entry"
          ],
          "url": "https://vuldb.com/vuln/390090"
        },
        {
          "name": "VDB-390090 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/390090/cti"
        },
        {
          "name": "CVE-2026-19900 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-19900"
        },
        {
          "name": "Submit #870712 | LB-LINK\uff08\u6df1\u5733\u5fc5\u8054\u7535\u5b50\uff09 Router B-Link AC1200 X-PRO(AC6)_Dual_V1.0.22-20231206 Hardcoded Credentials",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/870712"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.md"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-14T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-08-14T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-14T21:16:52.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "LB-LINK X-PRO shadow hard-coded credentials",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-19900",
    "datePublished": "2026-08-15T16:45:07.432Z",
    "dateReserved": "2026-08-14T19:11:22.504Z",
    "dateUpdated": "2026-08-15T16:45:07.432Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-19900",
      "date": "2026-08-16",
      "epss": "0.00454",
      "percentile": "0.37684"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-19900\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-08-15T17:16:24.730\",\"lastModified\":\"2026-08-15T17:16:24.730\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"LB-LINK\",\"product\":\"X-PRO\",\"cpes\":[\"cpe:2.3:a:lb-link:x-pro:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"1.0.22-20231206\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:C/I:C/A:C\",\"baseScore\":7.6,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":4.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-259\"},{\"lang\":\"en\",\"value\":\"CWE-798\"}]}],\"references\":[{\"url\":\"https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.md\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2026-19900\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/870712\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/390090\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/390090/cti\",\"source\":\"cna@vuldb.com\"}]}}"
  }
}

GHSA-6PW8-XC67-FHHG

Vulnerability from github – Published: 2026-08-15 18:31 – Updated: 2026-08-15 18:31

Details

Severity

8.1 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

8.2 (High)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19900"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-259"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T17:16:24Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-6pw8-xc67-fhhg",
  "modified": "2026-08-15T18:31:18Z",
  "published": "2026-08-15T18:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19900"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DavCloudz/cve/blob/main/B-Link/B-Link%20AC1200%20X-PRO(AC6)%20Hardcoded%20Credentials%20Vulnerability.md"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19900"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/870712"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/390090"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/390090/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-19900 (GCVE-0-2026-19900)

GHSA-6PW8-XC67-FHHG

Tags

Sightings

Nomenclature