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CVE-2025-11616

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

Published: Oct 10, 2025Updated: Oct 31, 2025 Sources: CVE List NVD BDUCWE-126
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.3%
Top 80.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-126

Affected Products

FreeRTOS-Plus_TCPAWS
Mixed
Cloud & SaaS / cloud-platform
freertos-plus-tcpamazon
SaaS
Cloud & SaaS / cloud-platform
FreeRTOS Plus TCPAmazon Web Services, Inc.
Mixed
Cloud & SaaS / cloud-platform
awscommercialUSCloud & SaaSaka aws
amazoncommercialUSCloud & SaaS
amazon web services, inc.commercialUSCloud & SaaSaka freertos, freertos plus tcp, aws vpn client

Exploitability

Official Patch Available

References

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4
github.com
https://aws.amazon.com/security/security-bulletins/AWS-2025-023/
aws.amazon.com
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-8j9h-xjm9-8j6j
github.com
and 1 more references View all →

Timeline

Published
Oct 10, 2025
Last Updated
Oct 31, 2025

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