CVE record · CVE-2026-80668

netfilter: nf_conntrack_expect: use conntrack GC to reap expectations

CVSS 9.8 CriticalCriticalEPSS 0.0060 · 49th percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

Published by the CVE Program (CNA: Linux) at 28 Aug 2026, 06:49 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
Vendor	Product	Versions
Linux	Linux	affected 9e1196d27ef496f404c76f7a9d03761142d991c4 to before 61ca26e1a45965590f7e477c4d6f711162642e1c git affected 5e1c1d22268ae710c238342c8030c21daf298168 to before 3d7b808ec35291ee75dcdb2b6fe5f587bfe9b1df git affected d52fa1fa7440676b8c238037a050ab008c22737f to before 02f7809a19fc88cfd9bc113a4bfe7add6305db39 git affected f338ced0473849c9f6ed0b77ca99f1aab5826787 to before bc6b1da681abe631ed21b7fdced48546189d64a4 git affected bffcaad9afdfe45d7fc777397d3b83c1e3ebffe5 to before 7ec786f4230c2a9b2eaf97a2d45368933b49d2b2 git affected bffcaad9afdfe45d7fc777397d3b83c1e3ebffe5 to before b8b09dc2bf35a00d4e0556b5d6308c7b917ebda2 git affected 497f99b26fffdc5635706d1b4811f1ed8ee21a5b git affected 6.1.176 to before 6.1.191 semver affected 6.6.143 to before 6.6.160 semver affected 6.12.94 to before 6.12.114 semver affected 6.18.24 to before 6.18.61 semver affected 6.19.14 to before 6.20 semver Other versions: unaffected
Linux	Linux	affected 7.0 unaffected before 7.0 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.114 to 6.12., inclusive semver unaffected 6.18.61 to 6.18., inclusive semver unaffected 7.1.5 to 7.1., inclusive semver unaffected 7.2 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-80668
CNA: Linux
Tags: Linux kernel
Published: 28 Aug 2026
Updated: 6 Nov 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

Score	Rating	CVSS	Vector	Source
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 0.0060, the 49th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

28 Aug 2026, 06:49 UTC Confirmed by the CVE List
28 Aug 2026, 08:16 UTC Confirmed by NVD

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.