CVE-2026-46027

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-46027

Key Details

CVE	CVE-2026-46027
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 none; integrity impact is none; 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:

net/smc: avoid early lgr access in smc_clc_wait_msg

A CLC decline can be received while the handshake is still in an early

stage, before the connection has been associated with a link group.

The decline handling in smc_clc_wait_msg() updates link-group level sync

state for first-contact declines, but that state only exists after link

group setup has completed. Guard the link-group update accordingly and

keep the per-socket peer diagnosis handling unchanged.

This preserves the existing sync_err handling for established link-group

contexts and avoids touching link-group state before it is available. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-46027
CVE	https://www.cve.org/CVERecord?id=CVE-2026-46027

Source

Reference

NVD

CVE