{
  "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-2026-4936",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-4936",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-19T20:14:55.609Z",
    "updatedAt": "2026-08-20T13:29:02.461Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "Power System Insufficient Entropy",
      "summary": "IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could exploit this weakness to derive the encryption key and access the data.",
      "affected": [
        {
          "vendor": "IBM",
          "product": "PowerVM Hypervisor",
          "versions": [
            {
              "version": "FW1110.00",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "FW1110.20"
            },
            {
              "version": "FW1060.00",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "FW1060.71"
            },
            {
              "version": "FW950.00",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "FW950.H2"
            }
          ]
        }
      ]
    }
  }
}