{
  "cveId": "CVE-2026-81627",
  "url": "https://patchblox.com/security/cve/CVE-2026-81627",
  "summary": "CVE-2026-81627 is fixed in 33 products on 1 platform, first by DEBIAN-CVE-2026-81627, released October 6, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Qemu-kvm: vapic writable rom alias can escape the option-rom window and expose locked smram",
  "description": "A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset D_LCK protection and injecting code into System Management Mode memory.",
  "published": "2026-09-18T11:17:18Z",
  "severity": "Important",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
  "cwe": "Out-of-bounds Write",
  "epss": 0.00192,
  "epssPercentile": 0.08853,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81627",
  "fixes": [
    {
      "platform": "linux",
      "product": "qemu",
      "release": "Debian 14",
      "fixedVersion": "1:11.1.2\u002Bds-1",
      "fix": "DEBIAN-CVE-2026-81627",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-81627",
      "released": "2026-10-06T21:56:27Z"
    },
    {
      "platform": "linux",
      "product": "qemu",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "10.0.13-160000.2.1",
      "fix": "OPENSUSE-SU-2026:22047-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22047-1",
      "released": "2026-10-07T09:59:52Z"
    },
    {
      "platform": "linux",
      "product": "qemu",
      "release": "sles 16.0",
      "fixedVersion": "10.0.13-160000.2.1",
      "fix": "SUSE-SU-2026:24159-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24159-1",
      "released": "2026-10-07T09:57:02Z"
    },
    {
      "platform": "linux",
      "product": "qemu-common",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-common-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-docs",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-guest-agent",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-guest-agent-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-img",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-img-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-kvm",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-kvm-core",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-linux-user",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "10.0.13-160000.2.1",
      "fix": "OPENSUSE-SU-2026:22047-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22047-1",
      "released": "2026-10-07T09:59:52Z"
    },
    {
      "platform": "linux",
      "product": "qemu-linux-user",
      "release": "sles 16.0",
      "fixedVersion": "10.0.13-160000.2.1",
      "fix": "SUSE-SU-2026:24159-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24159-1",
      "released": "2026-10-07T09:57:02Z"
    },
    {
      "platform": "linux",
      "product": "qemu-pr-helper",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-pr-helper-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-aarch64-core",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-aarch64-core-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-x86",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-x86-core",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-system-x86-core-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-tests",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-tests-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-tools",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-binfmt",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-static",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-static-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-static-aarch64-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-static-x86",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "qemu-user-static-x86-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:11.0.0-4.amzn2023",
      "fix": "ALAS2023-2026-3241",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3241",
      "released": "2026-11-07T01:06:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}