CVE-2025-11618

A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6. We recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/AWS-2025-023/	Vendor Advisory
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4	Release Notes
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-6fh9-mqxj-hmwj	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

08 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Una comprobación de validación faltante en el código de procesamiento de paquetes UDP/IPv6 de FreeRTOS-Plus-TCP puede llevar a una desreferencia de puntero no válida al recibir un paquete UDP/IPv6 con un campo de versión IP incorrecto en la cabecera del paquete. Este problema solo afecta a las aplicaciones que utilizan IPv6. Recomendamos actualizar a la última versión y asegurar que cualquier código bifurcado o derivado sea parcheado para incorporar las nuevas correcciones.

Information

Published : 2025-10-10 18:15

Updated : 2026-10-08 13:10

NVD link : CVE-2025-11618

Mitre link : CVE-2025-11618

CVE.ORG link : CVE-2025-11618

JSON object : View

Products Affected

amazon

freertos-plus-tcp

CWE

CWE-476

NULL Pointer Dereference

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