{
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      "affected": [
        {
          "product": "unknown",
          "vendor": "unknown",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
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          "type": "finder",
          "value": "m.nageh"
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          "value": "-----BEGIN SECURITY ADVISORY-----\n\nAdvisory ID:    MONX-2021-001\nCVE ID:         CVE-2021-21735\nTitle:          ZTE ZXHN H168N V3.5 - Unauthenticated Wizard Credential\nDisclosure to Full Admin Compromise\nAffected:       ZTE ZXHN H168N V3.5\nDate:           2026-05-20\nAuthor:         Mina Nageh Salalma (Monx Research)\nContact:        minanageh379 () gmail com\nPublic URL:\nhttps://github.com/minanagehsalalma/cve-2021-21735-zte-zxhn-h168n-admin-compromise\nMITRE:          https://www.cve.org/CVERecord?id=CVE-2021-21735\n\n\nVULNERABILITY DESCRIPTION\n--------------------------\nThe ZTE ZXHN H168N V3.5 firmware exposes quick-setup wizard endpoints that\nreturn PPPoE credentials (ADUsername, VDUsername) and the WLAN KeyPassphrase\nvia the GetPassword action without requiring authentication. The firmware\nrouting allowlists these endpoints through a QuickSetupEnable branch.\n\nIn ISP-deployed configurations where the Wi-Fi password is reused as the\ndefault admin password, this credential disclosure is a full admin\ncompromise\nchain requiring a single unauthenticated HTTP request.\n\nA bulk PoC script (zte_zxhn_h168n_bulk_poc.py) is included in the repository\nfor verifying scale of exposure.\n\nCREDITS\n-------\nMina Nageh Salalma (Monx Research)\nhttps://github.com/minanagehsalalma\n\n-----END SECURITY ADVISORY-----\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
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        },
        {
          "url": "https://github.com/minanagehsalalma"
        },
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        },
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      "source": {
        "defect": [
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        ],
        "discovery": "EXTERNAL"
      },
      "title": "[SECURITY ADVISORY] CVE-2021-21735 - ZTE ZXHN H168N V3.5 Unauthenticated Admin Credential Leak",
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            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-05-20T14:33:37Z"
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