Detections
Analytics

Echo: linux: security update to 6.12.20-1

medium Tenable Cloud Security Plugin ID 464691

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: prevent connection release
 during oplock break notification ksmbd_work could be freed when after connection release. Increment
 r_count of ksmbd_conn to indicate that requests are not finished yet and to not release the connection.
 (CVE-2025-21955)

Solution

Update the linux library and its related packages to version 6.12.20-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-21955

Plugin Details

Severity: Medium

ID: 464691

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.86

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-21955

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: 9/15/2025

Vulnerability Publication Date: 4/1/2025

Reference Information

CVE: CVE-2025-21955