High 7.8Published May 9, 2024

CVE-2024-27397netfilter: nf_tables: use timestamp to check for set element timeout

Updated under an hour ago (Oct 26, 2026, 10:00 PM ET)

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It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size lock. Then, there is async gc which also needs to check the current time since it runs asynchronously from a workqueue.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from c3e1b005ed1cc068fc9d454a6e745830d55d251d before f8dfda798650241c1692058713ca4fef8e429061; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before eaf1a29ea5d7dba8e84e9e9f3b3f47d0cd540bfe; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before 7b17de2a71e56c10335b565cc7ad238e6d984379; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before 0d40e8cb1d1f56a994cdd2e015af622fdca9ed4d; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before b45176b869673417ace338b87cf9cdb66e2eeb01; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before 7fa2e2960fff8322ce2ded57b5f8e9cbc450b967; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before 383182db8d58c4237772ba0764cded4938a235c3; from c3e1b005ed1cc068fc9d454a6e745830d55d251d before 7395dfacfff65e9938ac0889dafa1ab01e987d15	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.1 before 4.19.320; from 4.20 before 5.4.282; from 5.5 before 5.10.224; from 5.11 before 5.15.165; from 5.16 before 6.1.97; from 6.2 before 6.6.84; from 6.7 before 6.7.5; 6.8; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/f8dfda798650241c1692058713ca4fef8e429061	patch
https://git.kernel.org/stable/c/eaf1a29ea5d7dba8e84e9e9f3b3f47d0cd540bfe	patch
https://git.kernel.org/stable/c/7b17de2a71e56c10335b565cc7ad238e6d984379	patch
https://git.kernel.org/stable/c/0d40e8cb1d1f56a994cdd2e015af622fdca9ed4d	patch
https://git.kernel.org/stable/c/b45176b869673417ace338b87cf9cdb66e2eeb01	patch
https://git.kernel.org/stable/c/7fa2e2960fff8322ce2ded57b5f8e9cbc450b967	patch
https://git.kernel.org/stable/c/383182db8d58c4237772ba0764cded4938a235c3	patch
https://git.kernel.org/stable/c/7395dfacfff65e9938ac0889dafa1ab01e987d15	patch
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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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.