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CVE record · CVE-2026-99139

tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)

No CVSS scoreEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:34 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 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before a60e62705c17534d6b6539de7b3a40c259e6827f git
  • affected 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before 4b0930d66dde0a1d1898f0edbbb5496c4dfa5f03 git
  • affected 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before 08dc5c62c09653d1c4ba67a009beb138486c2604 git
  • affected 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before c1804ef016392dd91267d2207ee43b1de34302ca git
  • affected 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before a8e45471afa230c1431c26c8e99ec24377e3b514 git
  • affected 0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2 to before 5271b79b7ad68dcb222e893773f92bdabf7750f3 git
Other versions: unaffected
Linux Linux
  • affected 5.6
  • unaffected before 5.6 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-2026-99139
CNA
Linux
Tags
Published
28 Oct 2026
Updated
30 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

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0017, the 6th percentile, on 5 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 28 Oct 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.