CVE-2025-11616: Buffer Over-read when receiving improperly sized ICMPv6 packets in FreeRTOS-Plus-TCP

Q: What is the severity of CVE-2025-11616?

CVE-2025-11616 is considered a high severity vulnerability due to its potential to cause out-of-bounds reads in affected applications.

Q: How do I fix CVE-2025-11616?

To fix CVE-2025-11616, you should upgrade to the latest version of FreeRTOS-Plus-TCP that addresses this vulnerability.

Q: Which applications are vulnerable to CVE-2025-11616?

Only applications using IPv6 and FreeRTOS-Plus-TCP are vulnerable to CVE-2025-11616.

Q: What type of vulnerability is CVE-2025-11616?

CVE-2025-11616 is a missing validation check vulnerability in the ICMPv6 packet processing code.

Q: What impact can CVE-2025-11616 have on my system?

CVE-2025-11616 can lead to potential information disclosure or application crashes due to out-of-bounds reading.

Published Oct 10, 2025

Updated

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 Software

2 affected components

Freertos FreeRTOS-Plus-TCP

Amazon Freertos-plus-tcp>=4.0.0<4.3.4

Event History

Oct 10, 2025

CVE Published

via MITRE·05:10 PM

Data Sourced

via MITRE·05:10 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·06:15 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2025-11616?

CVE-2025-11616 is considered a high severity vulnerability due to its potential to cause out-of-bounds reads in affected applications.

How do I fix CVE-2025-11616?

To fix CVE-2025-11616, you should upgrade to the latest version of FreeRTOS-Plus-TCP that addresses this vulnerability.

Which applications are vulnerable to CVE-2025-11616?

Only applications using IPv6 and FreeRTOS-Plus-TCP are vulnerable to CVE-2025-11616.

What type of vulnerability is CVE-2025-11616?

CVE-2025-11616 is a missing validation check vulnerability in the ICMPv6 packet processing code.

What impact can CVE-2025-11616 have on my system?

CVE-2025-11616 can lead to potential information disclosure or application crashes due to out-of-bounds reading.

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