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CVE record · CVE-2026-43133

KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation

CVSS 7.9 HighEPSS 0.0013 · 2nd percentile

Published by the CVE Program (CNA: Linux) at 6 May 2026, 11:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Linux Linux
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before 10063e1251c1485034a018236080792ad083dcc5 git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before c3b7015000988ba35ecd5648f4b2283960f00543 git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before 3880e331b0b31d0d5d3702b124f6c93539cd478a git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before fce2fd4a2ca05670a91015aacccf96a1c26268fd git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before d464cf1ed900d47c85393d40b00017b6adfc2e6c git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before 0004ecb798b30e90d7ebfe74efae2d9423315a64 git
  • affected cc3ed80ae69f454c3d904af9f65394a540099723 to before 127ccae2c185f62e6ecb4bf24f9cb307e9b9c619 git
Other versions: unaffected
Linux Linux
  • affected 5.13
  • unaffected before 5.13 semver
  • unaffected 5.15.202 to 5.15.*, inclusive semver
  • unaffected 6.1.165 to 6.1.*, inclusive semver
  • unaffected 6.6.128 to 6.6.*, inclusive semver
  • unaffected 6.12.75 to 6.12.*, inclusive semver
  • unaffected 6.18.16 to 6.18.*, inclusive semver
  • unaffected 6.19.6 to 6.19.*, inclusive semver
  • unaffected 7.0 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-43133
CNA
Linux
Weakness (CWE)
CWE-628 · CWE-754
Tags
Published
6 May 2026
Updated
19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.9 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H CNA (Linux)Used for this record
7.9 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H ADP (redhat-SADP)
  • CISA KEV Not listed.
  • EPSS 0.0013, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 6 May 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.