CVE-2026-74746

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74746

Key Details

CVE	CVE-2026-74746
CVSS Score / Version	9.8 (Critical) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

netfilter: flowtable: publish GC-visible tuple last

nf_flow_table_iterate() only treats original-direction tuple nodes as

owning entries. Publishing the original node first lets GC observe and

free a flow while flow_offload_add() is still inserting the reply node.

Publish the reply node first and the original node last so GC never

sees a partially installed flow.

KASAN can trigger slab-use-after-free read and write reports in the

flowtable/rhashtable path (rht_deferred_worker, jhash, flow_offload_del,

flow_offload_lookup, etc.). (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74746
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74746

Source

Reference

NVD

CVE