Detections
Analytics

Echo: linux: security update to 6.1.176-1

critical Tenable Self-Hosted Container Security Plugin ID 462987

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: ip6t_eui64: reject invalid
 MAC header for all packets `eui64_mt6()` derives a modified EUI-64 from the Ethernet source address and
 compares it with the low 64 bits of the IPv6 source address. The existing guard only rejects an invalid
 MAC header when `par->fragoff != 0`. For packets with `par->fragoff == 0`, `eui64_mt6()` can still reach
 `eth_hdr(skb)` even when the MAC header is not valid. Fix this by removing the `par->fragoff != 0`
 condition so that packets with an invalid MAC header are rejected before accessing `eth_hdr(skb)`.
 (CVE-2026-31685)

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-2026-31685

Plugin Details

Severity: Critical

ID: 462987

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.48

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.2

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

CVSS Score Source: CVE-2026-31685

CVSS v3

Risk Factor: Critical

Base Score: 9.4

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 5/1/2026

Vulnerability Publication Date: 4/25/2026

Reference Information

CVE: CVE-2026-31685