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CVE record · CVE-2026-89482

nvme-tcp: do not accept C2HData based on blk_rq_payload_bytes() alone

CVSS 9.8 CriticalCriticalEPSS 0.0071 · 54th 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, 19:43 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 25e5cb780e62bde432b401f312bb847edc78b432 to before 32ea8ce96b9bd797c59c351ce490ffd97adaa8c0 git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before dd8906bb8f8d5bf1c9f861e1382c82b87bfe7cab git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before 7ed0b61bbc145988be292c4d3ec580aebd8d2bcd git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before b96e1ff75e5c0ad6e077ac002b1d30b0a2b49528 git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before b36161701cb366f416afdcf70771d432a7c74753 git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before 6a01b58263108eaf9869bb6f82f07709240c6589 git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before 641ad3a30ba560f0a9a610376c568d7b75d2a2aa git
  • affected 25e5cb780e62bde432b401f312bb847edc78b432 to before 3a4aa9e6ad3e35f8e24d5eaf38ee4d437075fb36 git
  • affected f507ae6e33cbe56c4e3fe000434fc0ecc263d098 git
  • affected b1458c16f4e26e87492e58e4d24a1873bd09232a git
  • affected 5.4.36 to before 5.5 semver
  • affected 5.6.8 to before 5.7 semver
Other versions: unaffected
Linux Linux
  • affected 5.7
  • unaffected before 5.7 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-2026-89482
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 0.0071, the 54th 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.