{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Cudy WR3000 Hard-coded",
          "vendor": "Cudy",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Nir Yehoshua"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Hello Full Disclosure list,\n\nCipher Security Labs has published details for two vulnerabilities\naffecting Cudy WR3000 hardware revision 2.0 running firmware before\nversion 2.5.24.\n\nCVE-2026-71960 - Hard-coded JWT Secret Authentication Bypass\nSeverity: Critical, CVSS 9.3\n\nThe device firmware contains a hard-coded HMAC signing secret used by\nthe Mosquitto MQTT JWT authentication plugin. Because the secret can\nbe recovered from the firmware image, an attacker can forge a valid\nJWT without the owner\u0027s username or password and without user\ninteraction.\n\nCVE-2026-71961 - OS Command Injection via Mesh MQTT Command Interface\nSeverity: High, CVSS 8.7\n\nOnce authenticated to MQTT, an attacker can send unsanitized input\nthrough the mesh command interface to a shell sink, resulting in\narbitrary operating-system command execution as root.\n\nCombined attack path:\n\nfirmware signing key -\u003e forged JWT -\u003e MQTT access -\u003e root commands\n\nRemote-scope clarification:\nThe attacker does not need physical proximity to the router and does\nnot need to be connected to the victim\u0027s LAN. Exploitation still\nrequires a network path to the relevant MQTT/control-plane interface.\nThis disclosure does not claim that every affected router is directly\nreachable from the public Internet.\n\nAffected scope:\nCudy WR3000 hardware revision 2.0\nFirmware versions earlier than 2.5.24\n\nCudy lists firmware 2.5.24 with a release date of July 30, 2026. There\nis no defensible public estimate of the number of vulnerable devices\nbecause neither the vendor nor public datasets provide installed-base\nfigures broken down by hardware revision and firmware version.\n\nReferences:\nhttps://github.com/advisories/GHSA-jw4g-pv34-hp37\nhttps://github.com/advisories/GHSA-8jmp-g7g6-gf45\nhttps://www.cudy.com/en-us/pages/download-center/wr3000-2-0\n\nResearcher:\nNir Yehoshua\nCipher Security Labs\nhttps://ciphersecuritylabs.com/\n\nRegards,\nNir Yehoshua\nCipher Security Labs\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T10:07:24Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
      },
      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://vuln.freearchive.org/archive/full-disclosure/2026/Aug/68"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Aug/68"
        },
        {
          "url": "https://ciphersecuritylabs.com/"
        },
        {
          "url": "https://github.com/advisories/GHSA-8jmp-g7g6-gf45"
        },
        {
          "url": "https://github.com/advisories/GHSA-jw4g-pv34-hp37"
        },
        {
          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
        },
        {
          "url": "https://seclists.org/fulldisclosure/"
        },
        {
          "url": "https://www.cudy.com/en-us/pages/download-center/wr3000-2-0"
        }
      ],
      "source": {
        "defect": [
          "https://seclists.org/fulldisclosure/2026/Aug/68"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cudy WR3000: Hard-coded JWT Secret to Root Command Injection",
      "x_gcve": [
        {
          "recordType": "advisory",
          "relationships": [],
          "vulnId": "GCVE-1988-2026-0156",
          "x_vulnarchive": {
            "archiveUrl": "https://vuln.freearchive.org/archive/full-disclosure/2026/Aug/68",
            "automated": true,
            "contentSha256": "f46a5a06f3114e09b165ded208e2a127b30bb244f649c06e56eceae463f7601a",
            "evidenceScore": 7,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Aug/68",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-08-19T20:23:26Z"
          }
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-07T13:20:22Z",
    "dateUpdated": "2026-09-09T10:07:24Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0156"
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  "dataVersion": "5.2"
}