CVE-2025-11618— Invalid Pointer Dereference when receiving UDP/IPv6 packets in FreeRTOS-Plus-TCP
Quick assessment
Affected
AWS FreeRTOS-Plus-TCP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
FreeRTOS-Plus-TCP是FreeRTOS开源的一种适用于 FreeRTOS 的可扩展的开源和线程安全 TCP/IP 堆栈。 FreeRTOS-Plus-TCP存在安全漏洞，该漏洞源于UDP/IPv6数据包处理代码缺少验证检查，可能导致无效指针取消引用。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-11618
Vulnerability Information
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Vulnerability Title
Invalid Pointer Dereference when receiving UDP/IPv6 packets in FreeRTOS-Plus-TCP
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
FreeRTOS-Plus-TCP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRTOS-Plus-TCP是FreeRTOS开源的一种适用于 FreeRTOS 的可扩展的开源和线程安全 TCP/IP 堆栈。 FreeRTOS-Plus-TCP存在安全漏洞，该漏洞源于UDP/IPv6数据包处理代码缺少验证检查，可能导致无效指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| AWS | FreeRTOS-Plus-TCP | 4.0.0 ~ 4.3.4 | - |
|
II. Public POCs for CVE-2025-11618
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-11618 (2)
-
Buffer Over-read when receiving improperly sized ICMPv6 packets vendor-advisory
Vendor Pages for CVE-2025-11618 (1)
Same Patch Batch · AWS · 2025-10-10 · 3 CVEs total
| CVE-2025-11616 | 5.4 MEDIUM | Buffer Over-read when receiving improperly sized ICMPv6 packets in FreeRTOS-Plus-TCP |
| CVE-2025-11617 | 5.4 MEDIUM | Buffer Over-read when receiving IPv6 packets with incorrect payload length in FreeRTOS-Plu |
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V. Comments for CVE-2025-11618
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