CVE-2026-45972

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-45972

Key Details

CVE	CVE-2026-45972
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, Red Hat Enterprise Linux 10, and Red Hat Enterprise Linux 9
Classified as	CWE-416 (Use After Free)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel
Red Hat	Red Hat Enterprise Linux 10
Red Hat	Red Hat Enterprise Linux 9

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Red Hat

Red Hat Enterprise Linux 10

Red Hat

Red Hat Enterprise Linux 9

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

smb: client: fix potential UAF and double free in smb2_open_file()

Zero out @err_iov and @err_buftype before retrying SMB2_open() to

prevent an UAF bug if @data != NULL, otherwise a double free.

Monitor Linux's and Red Hat's web pages for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-45972
CVE	https://www.cve.org/CVERecord?id=CVE-2026-45972

Source

Reference

NVD

CVE