Detections
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Echo: linux: security update to 6.12.96-1

critical Tenable Cloud Security Plugin ID 457781

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
 delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request
 work is available. Both the base-file unlink and the ADS xattr removal consequently run with the ksmbd
 worker credentials and can bypass filesystem permission checks. Run both operations with the credentials
 captured in struct file when the handle was opened. This preserves the authenticated user's fsuid, fsgid,
 supplementary groups and capability restrictions at final close. (CVE-2026-64392)

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-2026-64392

Plugin Details

Severity: Critical

ID: 457781

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.62

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-64392

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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-2026-64392