{
  "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-2023-1257",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-1257",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-03-07T16:54:21.053Z",
    "updatedAt": "2025-01-16T21:55:20.265Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "CVE-2023-1257",
      "summary": "An attacker with physical access to the affected Moxa UC Series devices can initiate a restart of the device and gain access to its BIOS. Command line options can then be altered, allowing the attacker to access the terminal. From the terminal, the attacker can modify the device’s authentication files to create a new user and gain full access to the system.",
      "affected": [
        {
          "vendor": "MOXA",
          "product": "UC-8580 Series",
          "versions": [
            {
              "version": "V1.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-8540 Series",
          "versions": [
            {
              "version": "V1.0 to V1.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-8410A Series",
          "versions": [
            {
              "version": "V2.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-8200 Series",
          "versions": [
            {
              "version": "V1.0 to V2.4",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-8100A-ME-T Series",
          "versions": [
            {
              "version": "V1.0 to V1.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-8100 Series",
          "versions": [
            {
              "version": "V1.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-5100 Series",
          "versions": [
            {
              "version": "V1.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-3100 Series",
          "versions": [
            {
              "version": "V1.2 to V2.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-2100 Series",
          "versions": [
            {
              "version": "V1.3 to V1.5",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "MOXA",
          "product": "UC-2100-W Series",
          "versions": [
            {
              "version": "V1.3 to V1.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}