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CVE record · CVE-2026-89636

smb: client: clear ce->tgthint in free_tgts()

CVSS 9.8 CriticalCriticalEPSS 0.0066 · 52nd 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, 19:45 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 54be1f6c1c37498bba557049df646cc239fa37e3 to before 14f60e959b5ac813715ff72e127beb3584ddabf6 git
  • affected 54be1f6c1c37498bba557049df646cc239fa37e3 to before 3ff9462bb7a06d8d32a1dc02d39580b078ec9e55 git
  • affected 54be1f6c1c37498bba557049df646cc239fa37e3 to before 7507bd1885643d0461a6017767492450af1ce2a3 git
  • affected 54be1f6c1c37498bba557049df646cc239fa37e3 to before 9ab46a13798a61d9d020b01d4e57efdabe6624fa git
  • affected 54be1f6c1c37498bba557049df646cc239fa37e3 to before 5baab40404a9393bcc0b7b8f1950bf2c307e0984 git
  • affected 54be1f6c1c37498bba557049df646cc239fa37e3 to before b1b741cf8e7ce1b91d937e23decd3d3358748700 git
Other versions: unaffected
Linux Linux
  • affected 5.0
  • unaffected before 5.0 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-2026-89636
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 0.0066, the 52nd 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.