Detections
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Echo: linux: security update to 6.1.170-1

high Tenable Cloud Security Plugin ID 462295

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: ipv6: ndisc: fix ndisc_ra_useropt
 to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements
 with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three
 padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding
 fields. (CVE-2026-43040)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-43040

Plugin Details

Severity: High

ID: 462295

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.39

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-43040

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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: 5/2/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-43040