Medium severity5.4NVD Advisory· Published Oct 10, 2025· Updated Jun 17, 2026

CVE-2025-11617

Description

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.

AI Insight

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

Affected products

FreeRTOS/Freertos Plus TCPllm-fuzzy
Amazon/Freertos Plus TCP
cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*
Range: >=4.0.0,<4.3.4
AWS/FreeRTOS-Plus-TCPcpe-rescue
Range: 4.0.0

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/AWS-2025-023/nvdVendor Advisory
github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2nvdVendor Advisory
github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4nvdRelease Notes

News mentions

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