CVE-2025-11617— Buffer Over-read when receiving IPv6 packets with incorrect payload length in FreeRTOS-Plus-TCP
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I. Basic Information for CVE-2025-11617
Vulnerability Information
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Vulnerability Title
Buffer Over-read when receiving IPv6 packets with incorrect payload length in FreeRTOS-Plus-TCP
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区上溢读取
Source: NVD (National Vulnerability Database)
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IPv6数据包处理代码缺少验证检查，可能导致越界读取。
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-2025-11617
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2025-11618 | 4.3 MEDIUM | Invalid Pointer Dereference when receiving UDP/IPv6 packets in FreeRTOS-Plus-TCP |
IV. Related Vulnerabilities
Same product: FreeRTOS-Plus-TCP
- CVE-2026-7426
Out-of-Bounds Write via Unsanitized Prefix Length in Router - CVE-2026-7425
Out-of-Bounds Read in Router Advertisement Option Parser in - CVE-2026-7424
Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Pl - CVE-2026-7423
Integer Underflow in ICMP Echo Reply Processing in FreeRTOS- - CVE-2026-7422
MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and
Same vendor: AWS
- CVE-2026-7461
OS Command Injection in Amazon ECS Agent via FSx Windows Fil - CVE-2026-7426
Out-of-Bounds Write via Unsanitized Prefix Length in Router - CVE-2026-7425
Out-of-Bounds Read in Router Advertisement Option Parser in - CVE-2026-7424
Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Pl - CVE-2026-7423
Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-
V. Comments for CVE-2025-11617
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