{
  "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-2026-102916",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-102916",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-09T14:12:08.832Z",
    "updatedAt": "2026-10-09T21:07:26.509Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "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": "Reachable assertion in illumos bhyve REP string instruction emulation allows guest to panic host",
      "summary": "A reachable assertion in the illumos bhyve instruction emulator allows a guest to panic the host. When emulating a REP-prefixed MOVS or STOS instruction that accesses guest MMIO, vie_emulate_movs() and vie_emulate_stos() in usr/src/uts/intel/io/vmm/vmm_instruction_emul.c do not clear the VIES_REPEAT status flag on the final iteration. For MMIO regions emulated in the kernel (the local APIC, I/O APIC and HPET), the stale flag causes a VERIFY assertion in vie_advance_pc() to fail, and the host panics. A privileged user within a guest VM can issue a REP MOVS or REP STOS instruction against the local APIC page to cause a denial of service of the host and every other guest running on it. The flaw has existed since 2020 (illumos-gate commit e0c0d44e), and affects any illumos distribution prior to illumos-gate commit 696ecf8d.",
      "affected": [
        {
          "vendor": "illumos",
          "product": "illumos-gate",
          "packageName": "system/bhyve",
          "collectionURL": "https://illumos.org",
          "platforms": [
            "x86"
          ],
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "e0c0d44e917080841514d0dd031a696c74e8c435",
              "status": "affected",
              "versionType": "git",
              "lessThan": "696ecf8debceed9dc33937d8c8e111e4aeebfdae",
              "changes": [
                {
                  "at": "696ecf8debceed9dc33937d8c8e111e4aeebfdae",
                  "status": "unaffected"
                }
              ]
            }
          ]
        },
        {
          "vendor": "OmniOS",
          "product": "OmniOS",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "any",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151054"
            },
            {
              "version": "r151058",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151058w",
              "changes": [
                {
                  "at": "r151058w",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "r151056",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151056aw",
              "changes": [
                {
                  "at": "r151056aw",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "r151054",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "r151054bw",
              "changes": [
                {
                  "at": "r151054bw",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}