CVE-2025-11617 MEDIUM

CVE-2025-11617: Buffer Over-read when receiving IPv6 packets with incorrect payload length in FreeRTOS-Plus-TCP

Vendor Aws
Product FreeRTOS-Plus-TCP
Weakness CWE-126
Published October 10, 2025
Last update October 10, 2025
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

A missing validation check in FreeRTOS-Plus-TCP's IPv6 packet processing code can lead to an out-of-bounds read when receiving a IPv6 packet with incorrect payload lengths in the packet header. This issue only affects applications using IPv6. We recommend users upgrade to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.

Key dates

02Disclosure timeline

October 10, 2025 CVE published
October 10, 2025 Record updated