Detections
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Echo: mbedtls: security update to 3.6.6

critical Tenable Cloud Security Plugin ID 463303

Description

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

 - An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in
 public key export for FFDH keys. (CVE-2026-34875)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2026-34875

Plugin Details

Severity: Critical

ID: 463303

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.5

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-34875

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Vulnerability Publication Date: 4/1/2026

Reference Information

CVE: CVE-2026-34875