Critical Linux Kernel NFS client Vulnerability Scores 9.8 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-74730

Key Details

CVE	CVE-2026-74730
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:

NFS: Pin the 'struct nfs_server' during a FREE_STATEID call

Dan Aloni reports that he was able to hit a use-after-free bug if a

FREE_STATEID operation gets delayed for whatever reason. Fix this by

bumping the refcount of the 'struct nfs_server' object for the duration

of the FREE_STATEID so it doesn't get cleaned up from underneath us

while operations are still in flight. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74730
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74730

Source

Reference

NVD

CVE