CVE-2025-11618

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

Published: Oct 10, 2025Updated: Oct 31, 2025 Sources: CVE List NVD BDUCWE-476

4.3MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:LAvailability

Low

Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

Amazon Web Services, Inc.

commercial·USaka aws vpn client, freertos plus tcp, freertos

FreeRTOS Plus TCPMixed

Cloud & SaaS / cloud-platform

AWS

commercial·US

FreeRTOS-Plus-TCPEmbeddedLibrary

commercial·US

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

Is your org exposed to CVE-2025-11618?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques

Impact

Initial Access

View detailed technique mapping

References

https://aws.amazon.com/ru/security/security-bulletins/AWS-2025-023/

aws.amazon.com

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-6fh9-mqxj-hmwj

github.com

https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4

github.com

and 1 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-11618 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows