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CVE record · CVE-2026-89555

mpls: reload header after pskb_may_pull()

CVSS 9.8 CriticalCriticalEPSS 0.0069 · 53rd percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:44 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 9f427a0e474a67b454420c131709600d44850486 to before aa4fe0b450a461aa1162fe8375f5d28f4c957df8 git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before b1c0783b2facc398437ad8f8b86c636d7a78f8db git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before bfaaff99238326166694354a63a76c02563f98b1 git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before d9640239827d6d0cb84263b590f7a4f1596c17eb git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before fed638a248116b8a249bd4202d28e5934bdc65ad git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before d82b90a38c2ca8a0694428eab0e9551c23f2447d git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before 49d38c1b4390412f8950d33dfaee0ccbd17beb81 git
  • affected 9f427a0e474a67b454420c131709600d44850486 to before 29e63b8d9fc150cc191b1c6eb7e16e1247e1b650 git
  • affected ad864d9fce0ec56cc8f6afe5c6a0e6d7f484b9eb git
  • affected 4.9.8 to before 4.10 semver
Other versions: unaffected
Linux Linux
  • affected 4.10
  • unaffected before 4.10 semver
  • unaffected 5.10.270 to 5.10.*, inclusive semver
  • unaffected 5.15.221 to 5.15.*, inclusive semver
  • unaffected 6.1.188 to 6.1.*, inclusive semver
  • unaffected 6.6.157 to 6.6.*, inclusive semver
  • unaffected 6.12.109 to 6.12.*, inclusive semver
  • unaffected 6.18.50 to 6.18.*, inclusive semver
  • unaffected 7.2.4 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-89555
CNA
Linux
Tags
Published
11 Sept 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
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0069, the 53rd percentile, on 14 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 11 Sept 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.