{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2021-47740",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47740",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-31T18:40:53.590Z",
    "updatedAt": "2026-01-02T20:42:41.864Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "KZTech JT3500V 4G LTE CPE 2.0.1 Insufficient Session Expiration Vulnerability",
      "summary": "KZTech JT3500V 4G LTE CPE 2.0.1 contains a session management vulnerability that allows attackers to reuse old session credentials without proper expiration. Attackers can exploit the weak session handling to maintain unauthorized access and potentially compromise device authentication mechanisms.",
      "affected": [
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "JT3500V",
          "versions": [
            {
              "version": "2.0.1B1064",
              "status": "affected"
            },
            {
              "version": "2.0.1B1047",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM6200M",
          "versions": [
            {
              "version": "2.0.0B3210",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM6000N",
          "versions": [
            {
              "version": "2.0.0B3042",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM5000W",
          "versions": [
            {
              "version": "2.0.0B3037",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM4200M",
          "versions": [
            {
              "version": "2.0.0B2996",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM4100V",
          "versions": [
            {
              "version": "2.0.0B2988",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3500MW",
          "versions": [
            {
              "version": "2.0.0B1092",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3410V",
          "versions": [
            {
              "version": "2.0.0B1085",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3300V",
          "versions": [
            {
              "version": "2.0.0B1060",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3100E",
          "versions": [
            {
              "version": "2.0.0B981",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3100V",
          "versions": [
            {
              "version": "2.0.0B946",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "AM3000M",
          "versions": [
            {
              "version": "2.0.0B21",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "KZ7621U",
          "versions": [
            {
              "version": "2.0.0B14",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "KZ3220M",
          "versions": [
            {
              "version": "2.0.0B04",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "KZ Broadband Technologies, Ltd.",
          "product": "KZ3120R",
          "versions": [
            {
              "version": "2.0.0B01",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}