{
  "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-2025-53856",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-53856",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-15T13:55:49.991Z",
    "updatedAt": "2026-02-26T16:57:40.835Z",
    "importedAt": "2026-10-24T01:57:39.058Z",
    "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": "TMM vulnerability",
      "summary": "When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packet Velocity Acceleration (ePVA) feature, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  To determine which BIG-IP platforms have an ePVA chip refer to  K12837: Overview of the ePVA feature https://my.f5.com/manage/s/article/K12837 .  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
      "affected": [
        {
          "vendor": "F5",
          "product": "BIG-IP",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "17.5.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "17.5.1.3"
            },
            {
              "version": "17.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "17.1.3"
            },
            {
              "version": "16.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "16.1.6.1"
            },
            {
              "version": "15.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "15.1.10.8"
            }
          ]
        }
      ]
    }
  }
}