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CVE-2023-53663

🗓️ 07 Oct 2025 15:21:22Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

KVM nested SVM checks nested TSC scaling in VMRUN, not assert on TSC ratio divergence.

Related
Detection
Affected
Refs
NVD
Vulners
CNA
Node
linuxlinux_kernelRange5.166.1.54
OR
linuxlinux_kernelRange6.26.5.4
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/nested.c"
    ],
    "versions": [
      {
        "version": "5228eb96a4875f8cf5d61d486e3795ac14df8904",
        "lessThan": "6c1ecfea1daf6e75c46e295aad99dfbafd878897",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5228eb96a4875f8cf5d61d486e3795ac14df8904",
        "lessThan": "02b24270568f65dd607c4a848512dc8055b4491b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5228eb96a4875f8cf5d61d486e3795ac14df8904",
        "lessThan": "7cafe9b8e22bb3d77f130c461aedf6868c4aaf58",
        "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/svm/nested.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.54",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.4",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:49Current
6Medium risk
Vulners AI Score6
CVSS 3.15.5
EPSS0.00013
3