{
  "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-2026-58094",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-58094",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-26T05:39:42.893Z",
    "updatedAt": "2026-08-27T03:57:03.732Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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": "TOCTOU race in POSIX shared memory large page configuration",
      "summary": "The FIOSSHMLPGCNF ioctl(2) operation configures the page size for a largepage shared memory object.  This is intended to be used immediately after creating the object, before any memory is allocated for the object.  The handler checked whether a page size had already been configured without holding the rangelock.  Two concurrent callers could both observe an unconfigured object and set conflicting page sizes, leaving the object in an inconsistent state.\n\nAn unprivileged local user can exploit this race to escalate privileges.",
      "affected": [
        {
          "vendor": "FreeBSD",
          "product": "FreeBSD",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "15.1-RELEASE",
              "status": "affected",
              "versionType": "release",
              "lessThan": "p3"
            },
            {
              "version": "15.0-RELEASE",
              "status": "affected",
              "versionType": "release",
              "lessThan": "p13"
            },
            {
              "version": "14.4-RELEASE",
              "status": "affected",
              "versionType": "release",
              "lessThan": "p9"
            }
          ]
        }
      ]
    }
  }
}