{
  "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-2025-20155",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-20155",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-07T17:37:05.984Z",
    "updatedAt": "2026-02-26T18:28:48.301Z",
    "importedAt": "2026-10-24T01:57:24.991Z",
    "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": null,
      "summary": "A vulnerability in the bootstrap loading of Cisco IOS XE Software could allow an authenticated, local attacker to write arbitrary files to an affected system.\r\n\r This vulnerability is due to insufficient input validation of the bootstrap file that is read by the system software when a device is first deployed in SD-WAN mode or when an administrator configures SD-Routing on the device. An attacker could exploit this vulnerability by modifying a bootstrap file generated by Cisco Catalyst SD-WAN Manager, loading it into the device flash, and then either reloading the device in a green field deployment in SD-WAN mode or configuring the device with SD-Routing. A successful exploit could allow the attacker to perform arbitrary file writes to the underlying operating system.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco IOS XE Software",
          "versions": [
            {
              "version": "17.9.4",
              "status": "affected"
            },
            {
              "version": "17.9.5",
              "status": "affected"
            },
            {
              "version": "17.9.4a",
              "status": "affected"
            },
            {
              "version": "17.9.5a",
              "status": "affected"
            },
            {
              "version": "17.9.5b",
              "status": "affected"
            },
            {
              "version": "17.9.6",
              "status": "affected"
            },
            {
              "version": "17.9.6a",
              "status": "affected"
            },
            {
              "version": "17.9.5e",
              "status": "affected"
            },
            {
              "version": "17.9.5f",
              "status": "affected"
            },
            {
              "version": "17.12.1",
              "status": "affected"
            },
            {
              "version": "17.12.1w",
              "status": "affected"
            },
            {
              "version": "17.12.1a",
              "status": "affected"
            },
            {
              "version": "17.12.1x",
              "status": "affected"
            },
            {
              "version": "17.12.2",
              "status": "affected"
            },
            {
              "version": "17.12.3",
              "status": "affected"
            },
            {
              "version": "17.12.2a",
              "status": "affected"
            },
            {
              "version": "17.12.1y",
              "status": "affected"
            },
            {
              "version": "17.12.1z",
              "status": "affected"
            },
            {
              "version": "17.12.4",
              "status": "affected"
            },
            {
              "version": "17.12.3a",
              "status": "affected"
            },
            {
              "version": "17.12.1z1",
              "status": "affected"
            },
            {
              "version": "17.12.4a",
              "status": "affected"
            },
            {
              "version": "17.12.4b",
              "status": "affected"
            },
            {
              "version": "17.13.1",
              "status": "affected"
            },
            {
              "version": "17.13.1a",
              "status": "affected"
            },
            {
              "version": "17.14.1",
              "status": "affected"
            },
            {
              "version": "17.14.1a",
              "status": "affected"
            },
            {
              "version": "17.11.99SW",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}