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CVE-2026-46076

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a #UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nested_svm_l2_tlb_flush_enabled() is true, and the hypercall is something other than one of the supported Hyper-V hypercalls. When all of the above conditions are met, KVM will intercept VMMCALL but never forward it to L1, i.e. will let L2 make hypercalls as if it wer
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d5bd81551742bb8ba7ae71e1e03f5c76bd392f47f603ed8d9b6e7fa3ba9c1e1d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/hyperv.h","arch/x86/kvm/svm/hyperv.h","arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"924d721fae95687acedbaf624a094ed0e8b67104","status":"affected","version":"3f4a812edf5cb0a50e65fbdfafdb3e688da18f16","versionType":"git"},{"lessThan":"009c0f726abeaa67aad1d96b883bdce01d405ce2","status":"affected","version":"3f4a812edf5cb0a50e65fbdfafdb3e688da18f16","versionType":"git"},{"lessThan":"5fb4a5f361565f5b…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/hyperv.h","arch/x86/kvm/svm/hyperv.h","arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/hyperv.h","arch/x86/kvm/svm/hyperv.h","arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"924d721fae95687acedbaf624a094ed0e8b67104","status":"affected","version":"3f4a812edf5cb0a50e65fbdfafdb3e688da18f16","versionType":"git"},{"lessThan":"009c0f726abeaa67aad1d96b883bdce01d405ce2","status":"affected","version":"3f4a812edf5cb0a50e65fbdfafdb3e688da18f16","versionType":"git"},{"lessThan":"5fb4a5f361565f5b…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/hyperv.h","arch/x86/kvm/svm/hyperv.h","arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.9,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/009c0f726abeaa67aad1d96b883bdce01d405ce2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/5fb4a5f361565f5b629d8a8fe5288ce8463c5727"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/924d721fae95687acedbaf624a094ed0e8b67104"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c36991c6f8d2ab56ee67aff04e3c357f45cfc76c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a33fa1e55e9db37e1e6e6853252887a43221a91ce452ad9c21b211888f79bff4 · sha256:347fd66ac506b997… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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