{
  "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-2026-6239",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-6239",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-05T23:50:59.001Z",
    "updatedAt": "2026-06-08T13:07:41.431Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "Authenticated Stack-based Buffer Overflow in ONVIF CreateUsers Service in TP-Link Tao C520WS",
      "summary": "A stack‑based\nbuffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF CreateUsers service, where\nthe device fails to properly validate the number of XML user nodes during\nrequest processing. An authenticated attacker can send a specially crafted\nONVIF request containing an excessive number of user entries to trigger memory\ncorruption.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may cause the ONVIF management service to terminate unexpectedly,\nresulting in a denial‑of‑service (DoS) condition that disrupts device\nconfiguration and management functions.",
      "affected": [
        {
          "vendor": "TP-Link Systems Inc.",
          "product": "Tapo C520WS v2",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.2.6 Build 260528"
            }
          ]
        }
      ]
    }
  }
}