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CVE record · CVE-2026-99167

net/sched: fix use-after-free in __tcf_action_put()

CVSS 7.8 HighEPSS 0.0013 · 2nd 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 16af6067392c40e454e49eec834843ab03643d96 to before 4d83a3fc03bc595dd39b79ad61288738fbb1f2ba git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before fd01abed2568209f7daaf60e5ee68ae4a4744f48 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before fcc7d734ceccfab8ec3398c5b34f8e775d459507 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before fde33eb9955d819af282d5f5e84684eaec248291 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before 969ad6f2b266f383b44194d50d15631969b26222 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before 2465d27ef90de9105c2bffb6c35f8ce08918e642 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before 2e012e431aa271ef3c84206f48854f539c03bff0 git
  • affected 16af6067392c40e454e49eec834843ab03643d96 to before 7b16eb911091aae237a8673da94e4dfb9cd21d54 git
Other versions: unaffected
Linux Linux
  • affected 4.19
  • unaffected before 4.19 semver
  • unaffected 5.10.273 to 5.10.*, inclusive semver
  • unaffected 5.15.224 to 5.15.*, inclusive semver
  • unaffected 6.1.191 to 6.1.*, inclusive semver
  • unaffected 6.6.161 to 6.6.*, inclusive 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-2026-99167
CNA
Linux
Tags
Published
28 Oct 2026
Updated
31 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
7.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • 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

  1. 28 Oct 2026, 10:35 UTC Confirmed by the CVE List

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.