{
  "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-2025-38086",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38086",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-06-28T07:52:58.293Z",
    "updatedAt": "2026-05-11T21:20:59.045Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "net: ch9200: fix uninitialised access during mii_nway_restart",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ch9200: fix uninitialised access during mii_nway_restart\n\nIn mii_nway_restart() the code attempts to call\nmii->mdio_read which is ch9200_mdio_read(). ch9200_mdio_read()\nutilises a local buffer called \"buff\", which is initialised\nwith control_read(). However \"buff\" is conditionally\ninitialised inside control_read():\n\n        if (err == size) {\n                memcpy(data, buf, size);\n        }\n\nIf the condition of \"err == size\" is not met, then\n\"buff\" remains uninitialised. Once this happens the\nuninitialised \"buff\" is accessed and returned during\nch9200_mdio_read():\n\n        return (buff[0] | buff[1] << 8);\n\nThe problem stems from the fact that ch9200_mdio_read()\nignores the return value of control_read(), leading to\nuinit-access of \"buff\".\n\nTo fix this we should check the return value of\ncontrol_read() and return early on error.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "119766de4930ff40db9f36b960cb53b0c400e81b"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33163c68d2e3061fa3935b5f0a1867958b1cdbd2"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9da3e442714f7f4393ff01c265c4959c03e88c2f"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a350f30d65197354706b7759b5c89d6c267b1a9"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bd2569d0b2f918e9581f744df0263caf73ee76c"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4da7fcc098218ff92b2e83a43f545c02f714cedd"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cdaa6d1cb2ff1219c6c822b27655dd170ffb0f72"
            },
            {
              "version": "4a476bd6d1d923922ec950ddc4c27b279f6901eb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9ad0452c0277b816a435433cca601304cfac7c21"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.3"
            },
            {
              "version": "5.4.295",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.239",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.186",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.142",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.95",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}