CVE-2025-11617
Buffer Over-read when receiving IPv6 packets with incorrect payload length in FreeRTOS-Plus-TCP
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.
INFO
Published Date :
Oct. 10, 2025, 6:15 p.m.
Last Modified :
Oct. 31, 2025, 6:22 p.m.
Remotely Exploit :
Yes !
Source :
ff89ba41-3aa1-4d27-914a-91399e9639e5
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | ff89ba41-3aa1-4d27-914a-91399e9639e5 | ||||
| CVSS 4.0 | MEDIUM | ff89ba41-3aa1-4d27-914a-91399e9639e5 | ||||
| CVSS 4.0 | MEDIUM | ff89ba41-3aa1-4d27-914a-91399e9639e5 |
Solution
- Upgrade FreeRTOS-Plus-TCP to the latest version.
- Patch any forked or derivative code.
- Validate IPv6 packet handling logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-11617.
| URL | Resource |
|---|---|
| https://aws.amazon.com/security/security-bulletins/AWS-2025-023/ | Vendor Advisory |
| https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4 | Release Notes |
| https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-11617 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-11617
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-11617 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-11617 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 31, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.3.4 Added Reference Type AMZN: https://aws.amazon.com/security/security-bulletins/AWS-2025-023/ Types: Vendor Advisory Added Reference Type AMZN: https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4 Types: Release Notes Added Reference Type AMZN: https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2 Types: Vendor Advisory -
New CVE Received by ff89ba41-3aa1-4d27-914a-91399e9639e5
Oct. 10, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L Added CWE CWE-126 Added Reference https://aws.amazon.com/security/security-bulletins/AWS-2025-023/ Added Reference https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4 Added Reference https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2