{
  "id": "cve-2026-31431",
  "cveID": "CVE-2026-31431",
  "vendor": "Linux",
  "product": "Kernel",
  "vulnerabilityName": "Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability",
  "shortDescription": "Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.",
  "requiredAction": "\"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "dateAdded": "2026-05-01",
  "dueDate": "2026-05-15",
  "knownRansomware": false,
  "cwes": [
    "CWE-669"
  ],
  "notes": "https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/; https://xint.io/blog/copy-fail-linux-distributions#the-fix-6 ; https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/ ; https://nvd.nist.gov/vuln/detail/CVE-2026-31431",
  "sources": [
    {
      "label": "NVD",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31431"
    },
    {
      "label": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    },
    {
      "label": "lore.kernel.org",
      "url": "https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/"
    },
    {
      "label": "xint.io",
      "url": "https://xint.io/blog/copy-fail-linux-distributions#the-fix-6"
    },
    {
      "label": "git.kernel.org",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/"
    },
    {
      "label": "nvd.nist.gov",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31431"
    }
  ],
  "cvss": {
    "score": 7.8,
    "severity": "HIGH",
    "version": "3.1",
    "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  },
  "epss": {
    "score": 0.99907,
    "percentile": 0.99966
  },
  "timeline": [
    {
      "date": "2026-05-01",
      "event": "Added to the CISA KEV catalog"
    },
    {
      "date": "2026-05-15",
      "event": "CISA remediation due date (BOD 22-01)"
    }
  ],
  "status": "past due"
}