CVE-2026-72320

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-72320

Key Details

CVE	CVE-2026-72320
CVSS Score / Version	9.1 (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:N`
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 none.
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: nft_lookup: fix catchall element handling with inverted lookups

nft_lookup_eval() decides whether a lookup matched (`found`) from the

direct set lookup and priv->invert before falling back to the

catchall element used by interval sets (e.g. nft_set_rbtree) for the

open-ended default range. Since `found` is never recomputed after

`ext` is replaced by the catchall lookup, inverted lookups

(NFT_LOOKUP_F_INV, "!= @set") can wrongly match or wrongly skip the

catchall element, producing the wrong verdict. Fold the catchall

lookup into `ext` before computing `found`, matching the order

already used by nft_objref_map_eval(). (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-72320
CVE	https://www.cve.org/CVERecord?id=CVE-2026-72320

Source

Reference

NVD

CVE