Detections
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Echo: linux: security update to 6.1.187-1

medium Tenable Cloud Security Plugin ID 455384

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: mptcp: pm: ADD_ADDR rtx: always
 decrease sk refcount When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(). It should then
 be released in all cases at the end. Some (unlikely) checks were returning directly instead of calling
 sock_put() to decrease the refcount. Jump to a new 'exit' label to call __sock_put() (which will become
 sock_put() in the next commit) to fix this potential leak. While at it, drop the '!msk' check which cannot
 happen because it is never reset, and explicitly mark the remaining one as "unlikely". (CVE-2026-46158)

Solution

Update the linux library and its related packages to version 6.1.187-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-46158

Plugin Details

Severity: Medium

ID: 455384

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

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-2026-46158

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: 5/28/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-46158