{
  "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-2021-3047",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-3047",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2021-08-11T17:10:17.831Z",
    "updatedAt": "2024-09-17T02:32:37.786Z",
    "importedAt": "2026-10-24T01:56:32.228Z",
    "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": "PAN-OS: Weak Cryptography Used in Web Interface Authentication",
      "summary": "A cryptographically weak pseudo-random number generator (PRNG) is used during authentication to the Palo Alto Networks PAN-OS web interface. This enables an authenticated attacker, with the capability to observe their own authentication secrets over a long duration on the PAN-OS appliance, to impersonate another authenticated web interface administrator's session. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.4. PAN-OS 10.1 versions are not impacted.",
      "affected": [
        {
          "vendor": "Palo Alto Networks",
          "product": "PAN-OS",
          "versions": [
            {
              "version": "10.1.*",
              "status": "unaffected"
            },
            {
              "version": "8.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "8.1.19",
              "changes": [
                {
                  "at": "8.1.19",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "9.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.0.14",
              "changes": [
                {
                  "at": "9.0.14",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "10.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "10.0.4",
              "changes": [
                {
                  "at": "10.0.4",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "9.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.1.10",
              "changes": [
                {
                  "at": "9.1.10",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}