Vulnerability-Lookup

GHSA-29RM-XC84-5Q8F

Vulnerability from github – Published: 2025-08-13 12:31 – Updated: 2025-08-13 12:31

Details

Successful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device.

Severity

6.8 (Medium)


                  
                    CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2025-54465"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-13T12:15:26Z",
    "severity": "MODERATE"
  },
  "details": "This vulnerability exists in ZKTeco WL20 due to hard-coded MQTT credentials and endpoints stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve the hard-coded MQTT credentials and endpoints from the targeted device.\n\nSuccessful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device.",
  "id": "GHSA-29rm-xc84-5q8f",
  "modified": "2025-08-13T12:31:30Z",
  "published": "2025-08-13T12:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54465"
    },
    {
      "type": "WEB",
      "url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2025-0172"
    },
    {
      "type": "WEB",
      "url": "https://www.zkteco.com/en/Security_Bulletinsibs/20"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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"
    }
  ]
}

CVE-2025-54465 (GCVE-0-2025-54465)

Vulnerability from cvelistv5 – Published: 2025-08-13 11:17 – Updated: 2025-08-13 13:09

Title

Hard-coded Credentials Vulnerability in ZKTeco WL20

Summary

This vulnerability exists in ZKTeco WL20 due to hard-coded MQTT credentials and endpoints stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve the hard-coded MQTT credentials and endpoints from the targeted device. Successful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device.

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-13 13:09 UTC

CWE

CWE-798 - Use of Hard-coded Credentials

Assigner

CERT-In mitre root

References

2 references

URL	Tags
https://www.cert-in.org.in/s2cMainServlet?pageid=…	third-party-advisory
https://www.zkteco.com/en/Security_Bulletinsibs/20	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
ZKTeco Co	WL20 Biometric Attendance System	Affected: <=ZLM31-FXO1-3.1.8

Credits

This vulnerability is reported by Shravan Singh from Kavach IoT Security.

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-54465",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-13T13:09:37.206727Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-13T13:09:41.836Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WL20 Biometric Attendance System",
          "vendor": "ZKTeco Co",
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            }
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          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "This vulnerability exists in ZKTeco WL20 due to hard-coded MQTT credentials and endpoints stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve the hard-coded MQTT credentials and endpoints from the targeted device.\u003cbr\u003e\u003cbr\u003eSuccessful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device.\u003cbr\u003e"
            }
          ],
          "value": "This vulnerability exists in ZKTeco WL20 due to hard-coded MQTT credentials and endpoints stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve the hard-coded MQTT credentials and endpoints from the targeted device.\n\nSuccessful exploitation of this vulnerability could allow the attacker to gain unauthorized access to the MQTT broker and manipulate the communications of the targeted device."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "PHYSICAL",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "orgId": "66834db9-ab24-42b4-be80-296b2e40335c",
        "shortName": "CERT-In"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2025-0172"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.zkteco.com/en/Security_Bulletinsibs/20"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Upgrade ZKTeco WL20 Biometric Attendance System firmware to version ZLM31-FXO1-4.0.3.\u003cbr\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.zkteco.com/en/Security_Bulletinsibs/20\"\u003ehttps://www.zkteco.com/en/Security_Bulletinsibs/20\u003c/a\u003e\u003cbr\u003e"
            }
          ],
          "value": "Upgrade ZKTeco WL20 Biometric Attendance System firmware to version ZLM31-FXO1-4.0.3.\n https://www.zkteco.com/en/Security_Bulletinsibs/20"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
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    "dateReserved": "2025-07-22T08:56:34.299Z",
    "dateUpdated": "2025-08-13T13:09:41.836Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.