Detections
Analytics

Echo: linux: security update to 6.1.187-1

medium Tenable Cloud Security Plugin ID 461484

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: net: qrtr: ns: Limit the maximum
 server registration per node Current code does no bound checking on the number of servers added per node.
 A malicious client can flood NEW_SERVER messages and exhaust memory. Fix this issue by limiting the
 maximum number of server registrations to 256 per node. If the NEW_SERVER message is received for an old
 port, then don't restrict it as it will get replaced. While at it, also rate limit the error messages in
 the failure path of qrtr_ns_worker(). Note that the limit of 256 is chosen based on the current platform
 requirements. If requirement changes in the future, this limit can be increased. (CVE-2026-43491)

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-2026-43491

Plugin Details

Severity: Medium

ID: 461484

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

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-2026-43491

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: 5/19/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-43491