{
  "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-2026-15449",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-15449",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-16T19:27:16.036Z",
    "updatedAt": "2026-07-17T12:42:57.781Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "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 double copyin in illumos dld ioctl handling causes kernel heap corruption",
      "summary": "A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copies the dld_ioc_macprop_t ioctl header in once to read its pr_valsize field, sizes and allocates a kernel heap buffer from that value, and then copies the full request in a second time from the same unprivileged user address. A concurrent thread can enlarge pr_valsize between the two copyins, so the second copyin and the subsequent property handling write beyond the end of the undersized allocation and corrupt the kernel heap. An unprivileged local user, including one confined to a non-global zone that owns a datalink, can trigger this to panic the system. The resulting kernel heap corruption may be usable for further compromise.",
      "affected": [
        {
          "vendor": "illumos",
          "product": "illumos-gate",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "eae72b5b807baa9116e64502cbb278edf15f3146",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6959feb5b430411a4809b06c53dcdb42fb525eac",
              "changes": [
                {
                  "at": "6959feb5b430411a4809b06c53dcdb42fb525eac",
                  "status": "unaffected"
                }
              ]
            }
          ]
        },
        {
          "vendor": "OmniOS",
          "product": "OmniOS",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "any",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151054"
            },
            {
              "version": "r151058",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151058j",
              "changes": [
                {
                  "at": "r151058j",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "r151056",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151056aj",
              "changes": [
                {
                  "at": "r151056aj",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "r151054",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151054bj",
              "changes": [
                {
                  "at": "r151054bj",
                  "status": "unaffected"
                }
              ]
            }
          ]
        },
        {
          "vendor": "Triton Data Center",
          "product": "SmartOS",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "any",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "202060709",
              "changes": [
                {
                  "at": "20260709",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}