{
  "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-2022-0028",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-0028",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2022-08-10T16:00:16.743Z",
    "updatedAt": "2025-10-21T23:15:36.930Z",
    "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": "PAN-OS: Reflected Amplification Denial-of-Service (DoS) Vulnerability in URL Filtering",
      "summary": "A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone that has an external facing interface. This configuration is not typical for URL filtering and, if set, is likely unintended by the administrator. If exploited, this issue would not impact the confidentiality, integrity, or availability of our products. However, the resulting denial-of-service (DoS) attack may help obfuscate the identity of the attacker and implicate the firewall as the source of the attack. We have taken prompt action to address this issue in our PAN-OS software. All software updates for this issue are expected to be released no later than the week of August 15, 2022. This issue does not impact Panorama M-Series or Panorama virtual appliances. This issue has been resolved for all Cloud NGFW and Prisma Access customers and no additional action is required from them.",
      "affected": [
        {
          "vendor": "Palo Alto Networks",
          "product": "Cloud NGFW",
          "versions": [
            {
              "version": "All",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Palo Alto Networks",
          "product": "PAN-OS",
          "versions": [
            {
              "version": "8.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "8.1.23-h1",
              "changes": [
                {
                  "at": "8.1.23-h1",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "9.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.0.16-h3",
              "changes": [
                {
                  "at": "9.0.16-h3",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "9.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.1.14-h4",
              "changes": [
                {
                  "at": "9.1.14-h4",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "10.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "10.0.11-h1",
              "changes": [
                {
                  "at": "10.0.11-h1",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "10.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "10.1.6-h6",
              "changes": [
                {
                  "at": "10.1.6-h6",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "10.2",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "10.2.2-h2",
              "changes": [
                {
                  "at": "10.2.2-h2",
                  "status": "unaffected"
                }
              ]
            }
          ]
        },
        {
          "vendor": "Palo Alto Networks",
          "product": "Prisma Access",
          "versions": [
            {
              "version": "2.1 All",
              "status": "unaffected"
            },
            {
              "version": "2.2 All",
              "status": "unaffected"
            },
            {
              "version": "3.0 All",
              "status": "unaffected"
            },
            {
              "version": "3.1 All",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  }
}