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CVE record · CVE-2026-99178

x86/kvm: Don't consume async #PF flags on a kernel #PF in NMI context

No CVSS scoreEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:35 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 631bc4878220932fe67fc46fc7cf7cccdb1ec597 to before fd60b32a99627fda479c9fa1d4a82fa9f7994670 git
  • affected 631bc4878220932fe67fc46fc7cf7cccdb1ec597 to before b77e9622bbade9812e2090c66d25c372f515e921 git
  • affected 631bc4878220932fe67fc46fc7cf7cccdb1ec597 to before f45ee1ff6358a22d7e22a4c53cb3148ea97b10d9 git
  • affected 631bc4878220932fe67fc46fc7cf7cccdb1ec597 to before 81d99abe2bd81379abfb595e403bbbee6fbfc624 git
Other versions: unaffected
Linux Linux
  • affected 2.6.38
  • unaffected before 2.6.38 semver
  • unaffected 6.12.115 to 6.12.*, inclusive semver
  • unaffected 6.18.59 to 6.18.*, inclusive semver
  • unaffected 7.2.13 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-99178
CNA
Linux
Tags
Published
28 Oct 2026
Updated
1 Nov 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

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0017, the 6th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 28 Oct 2026, 10:35 UTC Confirmed by the CVE List
  2. 28 Oct 2026, 11:17 UTC Confirmed by NVD

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.