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OpenAdvisories
Medium · 5.4 CVE-2025-11616 EUVD-2025-33754

Buffer Over-read when receiving improperly sized ICMPv6 packets in FreeRTOS-Plus-TCP

Published Oct 10, 2025 · Updated Oct 10, 2025 · Assigned by AMZN

Description

A missing validation check in FreeRTOS-Plus-TCP's ICMPv6 packet processing code can lead to an out-of-bounds read when receiving ICMPv6 packets of certain message types which are smaller than the expected size. These issues only affect applications using IPv6.

Users should upgrade to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.

Affected products

VendorProductAffectedFixed
AWS FreeRTOS-Plus_TCP 4.0.0 – < 4.3.4 4.3.4

References