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CVE record · CVE-2026-63830

net: skmsg: preserve sg.copy across SG transforms

CVSS 9.4 CriticalCriticalEPSS 0.0044 · 38th percentile

Critical, because:

  • CVSS score 9.4: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 19 Jul 2026, 12:02 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 d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before f126eed589eec6f201405abbc398844042ef6d57 git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 31a110642b5fb5e61940cbcfb503445ac4f28017 git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 9bb86d8184b37503816150c4a6ad3c17dfdbe827 git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 0eb4c16c4adb262763bda870a8ed38a1a9dec7ec git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before d22cc92bc41290e5783a72375e0843d9435f6001 git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 1acdd14c0990dd1cd4b6534f00366d2e6dfce05f git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 21ed9540a8e1906dfcbc1bb82ba9b4de4fa4bd6d git
  • affected d3b18ad31f93d0b6bae105c679018a1ba7daa9ca to before 406e8a651a7b854c41fecd5117bb282b3a6c2c6b git
Other versions: unaffected
Linux Linux
  • affected 4.20
  • unaffected before 4.20 semver
  • unaffected 5.10.261 to 5.10.*, inclusive semver
  • unaffected 5.15.212 to 5.15.*, inclusive semver
  • unaffected 6.1.177 to 6.1.*, inclusive semver
  • unaffected 6.6.144 to 6.6.*, inclusive semver
  • unaffected 6.12.95 to 6.12.*, inclusive semver
  • unaffected 6.18.38 to 6.18.*, inclusive semver
  • unaffected 7.1.3 to 7.1.*, inclusive semver
  • unaffected 7.2 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-63830
CNA
Linux
Weakness (CWE)
CWE-269
Tags
Published
19 Jul 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
9.4 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0044, the 38th percentile, on 15 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 19 Jul 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.