CVE-2026-64247

🗓️ 24 Jul 2026 15:31:15Reported by LinuxType

Kernel KVM x86 hyper v bounds virtual processor id when querying sparse banks to prevent out of bounds read.

Reporter	Title	Published	Views	Family All 6
ATTACKERKB	CVE-2026-64247	24 Jul 202615:31	–	attackerkb
Cvelist	CVE-2026-64247 KVM: x86: hyper-v: Bound the bank index when querying sparse banks	24 Jul 202615:31	–	cvelist
Debian CVE	CVE-2026-64247	24 Jul 202615:31	–	debiancve
EUVD	EUVD-2026-48656	24 Jul 202618:31	–	euvd
NVD	CVE-2026-64247	24 Jul 202616:16	–	nvd
Positive Technologies	PT-2026-64362	24 Jul 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange6.2–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/hyperv.c"
    ],
    "versions": [
      {
        "version": "c58a318f6090efe06e6702b8882e2026f44f620e",
        "lessThan": "d18756b12aab30d07794446445c93112e5c69a2e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c58a318f6090efe06e6702b8882e2026f44f620e",
        "lessThan": "83c2f52c6a78b1590034e955cff3fe0b052fe4ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c58a318f6090efe06e6702b8882e2026f44f620e",
        "lessThan": "e36095d8d922bb26ce860231aacf0cd14edea07c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c58a318f6090efe06e6702b8882e2026f44f620e",
        "lessThan": "f636cf6a1e7b7f40d48d8d08bd5f152aa61dd130",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c58a318f6090efe06e6702b8882e2026f44f620e",
        "lessThan": "4721f8160f17554b003e8928bb61e6c9b2fe92a3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/hyperv.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/83c2f52c6a78b1590034e955cff3fe0b052fe4ae
git	www.git.kernel.org/stable/c/f636cf6a1e7b7f40d48d8d08bd5f152aa61dd130
git	www.git.kernel.org/stable/c/4721f8160f17554b003e8928bb61e6c9b2fe92a3
git	www.git.kernel.org/stable/c/d18756b12aab30d07794446445c93112e5c69a2e
git	www.git.kernel.org/stable/c/e36095d8d922bb26ce860231aacf0cd14edea07c

24 Jul 2026 16:16Current

5.7Medium risk

Vulners AI Score5.7