Detections
Analytics

Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 458423

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: ip6_vti: set netns_immutable on the
 fallback device. john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable
 flag on the per-netns fallback tunnel device (ip6_vti0). Other similar tunnel drivers (like ip6_tunnel,
 sit, ip6_gre, and ip_tunnel) correctly set this flag during their fallback device initialization to
 prevent them from being moved to another network namespace. (CVE-2026-52909)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-52909

Plugin Details

Severity: High

ID: 458423

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.09

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-52909

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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: 6/20/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-52909