Echo: mbedtls: security update to 3.6.6

high Tenable Self-Hosted Container Security Plugin ID 461464

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6()
function (CVE-2026-25833)

Solution

Update the mbedtls library and its related packages to version 3.6.6 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-25833

Plugin Details

Severity: High

ID: 461464

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.69

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-25833

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 5/27/2026

Vulnerability Publication Date: 4/1/2026

Reference Information

CVE: CVE-2026-25833