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CVE-2026-7425 Details

Description

Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause a denial of service (device crash) by sending a crafted Router Advertisement with a truncated PREFIX_INFORMATION option that is smaller than the expected structure size. To mitigate this issue, users should upgrade to the fixed version when available.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://aws.amazon.com/security/security-bulletins/2026-023-aws/ AMZNVendor Advisory
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6 AMZNRelease Notes
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1 AMZNRelease Notes
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-gffr-xgjg-jh9j AMZNPatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds ReadAMZN

Affected Products

ProductVersions
amazon freertos-plus-tcp
>= 4.0.0, < 4.2.6
>= 4.3.0, < 4.4.1

CPE

  • cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-7425
NVD Published Date:
Apr 29, 2026
NVD Last Modified:
Jun 17, 2026
Source:
AMZN
CVE-2026-7425 Details - Not Deferred