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Echo: linux: security update to 6.12.96-1

critical Tenable Self-Hosted Container Security Plugin ID 459516

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for ADS
 I/O Alternate data streams are stored as xattrs. Unlike regular file I/O, their read and write paths
 therefore call VFS xattr helpers which recheck inode permissions and LSM policy using the current task
 credentials. Run ADS I/O with the credentials captured when the SMB handle was opened. (CVE-2026-64391)

Solution

Update the linux library and its related packages to version 6.12.96-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-64391

Plugin Details

Severity: Critical

ID: 459516

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-64391

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/26/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-64391