Unrated severityNVD Advisory· Published Oct 10, 2025· Updated Oct 10, 2025

Invalid Pointer Dereference when receiving UDP/IPv6 packets in FreeRTOS-Plus-TCP

CVE-2025-11618

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FreeRTOS/Freertos Plus TCPllm-fuzzy
AWS/FreeRTOS-Plus-TCPv5
Range: 4.0.0

Patches

Vulnerability mechanics

References

github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4mitrepatchproduct
aws.amazon.com/security/security-bulletins/AWS-2025-023/mitrevendor-advisory
github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-6fh9-mqxj-hmwjmitrethird-party-advisory

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