Detections
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Echo: linux: security update to 6.1.176-1

high Tenable Cloud Security Plugin ID 463497

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: netfilter: xt_policy: fix strict mode
 inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one,
 but strict policy matching needs to consume info->pol[] in the same forward order as the rule layout.
 Derive the strict-match policy position from the number of transforms already consumed so that multi-
 element inbound rules are matched consistently. (CVE-2026-52920)

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-2026-52920

Plugin Details

Severity: High

ID: 463497

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.64

CVSS v2

Risk Factor: High

Base Score: 8.7

Temporal Score: 6.4

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

CVSS Score Source: CVE-2026-52920

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.2

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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: 6/25/2026

Vulnerability Publication Date: 6/3/2026

Reference Information

CVE: CVE-2026-52920