Unauthenticated Remote Vulnerability in Linux Linux Kernel Rates 9.8 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-74662

Key Details

CVE	CVE-2026-74662
CVSS Score / Version	9.8 (Critical) / CVSS v3.1
Updated	2026-10-14
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
Exploitation prediction (EPSS)	0.51% probability of exploitation in the next 30 days (42% percentile) -- FIRST.org's EPSS model.

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:

inet: frags: publish queues before arming timer

inet_frag_create() arms the fragment queue timer before inserting the

queue into the fqdir rhashtable. If the namespace fragment timeout is

zero or negative, the timer can run before the queue is published.

The timer callback then marks the queue complete, tries to remove a node

that is not in the hash table yet, and drops the anticipated hash

reference. Creation can subsequently publish the completed queue without

restoring that reference, leaving a stale hash node after the caller drops

the remaining reference.

Publish the queue first and arm the timer while holding the queue lock.

This makes timer expiry wait until the queue is visible in the hash table,

so inet_frag_kill() can remove the node and balance the hash reference. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74662
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74662

Source

Reference

NVD

CVE