High 7.5Published Jan 23, 2026

CVE-2025-71146netfilter: nf_conncount: fix leaked ct in error paths

Updated under an hour ago (Oct 28, 2026, 2:00 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: fix leaked ct in error paths There are some situations where ct might be leaked as error paths are skipping the refcounted check and return immediately. In order to solve it make sure that the check is always called.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 6e86f0eca857ee42787e30e9ec0b726aebfcae0a before 08fa37f4c8c59c294e9c18fea2d083ee94074e5a; from b160895d6bc9690459b16ef87799c9bd456af3ec before e1ac8dce3a893641bef224ad057932f142b8a36f; from 8d5a2c94c24dcc226863a7c2b5034750370c2189 before f381a33f34dda9e4023e38ba68c943bca83245e9; from da9f247fb5efcd5a2730cdc989291b383c439e10 before 325eb61bb30790ea27782203a17b007ce1754a67; 3558faee8aace3541189c3a2ca45c7e85e144b44 builds before 0b88be7211d21a0d68bb1e56dc805944e3654d6f; from f6904ed15ed1a188543057e3cb0d02daa80edfc9 before 4bd2b89f4028f250dd1c1625eb3da1979b04a5e8; from be102eb6a0e7c03db00e50540622f4e43b2d2844 before 2e2a720766886190a6d35c116794693aabd332b6; 8c2da7330214ce30f8333d1799a27ed0a9418f07; and 1 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 6.17.13 before 6.18; 6.12.63; 6.18.2; 6.19	NVD

References

References

https://git.kernel.org/stable/c/08fa37f4c8c59c294e9c18fea2d083ee94074e5a	patch
https://git.kernel.org/stable/c/e1ac8dce3a893641bef224ad057932f142b8a36f	patch
https://git.kernel.org/stable/c/f381a33f34dda9e4023e38ba68c943bca83245e9	patch
https://git.kernel.org/stable/c/325eb61bb30790ea27782203a17b007ce1754a67	patch
https://git.kernel.org/stable/c/0b88be7211d21a0d68bb1e56dc805944e3654d6f	patch
https://git.kernel.org/stable/c/4bd2b89f4028f250dd1c1625eb3da1979b04a5e8	patch
https://git.kernel.org/stable/c/2e2a720766886190a6d35c116794693aabd332b6	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.