{"id":"CVE-2026-64562","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Hide shadow VMCS right after VMCLEAR\n\nfree_nested() frees the shadow VMCS while vmcs01 still points to it","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Hide shadow VMCS right after VMCLEAR\n\nfree_nested() frees the shadow VMCS while vmcs01 still points to it. But\nbecause it is asynchronous with respect to loa…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","published":"2026-08-04","updated":"2026-08-08","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-64562","references":[{"url":"https://git.kernel.org/stable/c/1dabef6e206568bf9d9ade74f6e56a48ea35695d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/589419470030a89f16cf19300658b6dc644ca946","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8001d2ce9d9bd09118ce523aef595aa094573ae3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af56298e9d86e6098cd1d2e155cb2949b7c45412","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b82c3144d8264265448292ca406f60bafeba3b6f"},{"url":"https://git.kernel.org/stable/c/4f50e6aec16f69627dbad5704d1e90a255d766a7"},{"url":"https://git.kernel.org/stable/c/dc3eecfa219ebc9d01eaf7d1abd1441efe884dab"}],"tags":["nvd","cve.org"],"epss":0.00162,"epssPercentile":0.0534,"ingestedAt":"2026-08-08T19:28:34.990Z","vendor":"Linux","product":"Linux","affected":["Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < b82c3144d8264265448292ca406f60bafeba3b6f","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 4f50e6aec16f69627dbad5704d1e90a255d766a7","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < dc3eecfa219ebc9d01eaf7d1abd1441efe884dab","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < af56298e9d86e6098cd1d2e155cb2949b7c45412","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 589419470030a89f16cf19300658b6dc644ca946","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 8001d2ce9d9bd09118ce523aef595aa094573ae3","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 1dabef6e206568bf9d9ade74f6e56a48ea35695d","Linux >= 355f4fb1405ec29d0fac49b4d41fcd78cbd455d5 < 622ebfac01ba4f9c0060cebd41257fe46fc4a0b3","Linux 4.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:42:52.528075Z"},"slug":"CVE-2026-64562","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Hide shadow VMCS right after VMCLEAR\n\nfree_nested() frees the shadow VMCS while vmcs01 still points to it. But\nbecause it is asynchronous with respect to loaded_vmcs_clear(), the vCPU\nmight migrate before the pointer is cleared and __loaded_vmcs_clear()\nmay then execute VMCLEAR.\n\nThe VMCS needs to stay attached until its explicit VMCLEAR completes, but\nthen it can be hidden and the page safely freed.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}