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CVE-2025-5688— Out of Bounds Write in FreeRTOS-Plus-TCP

EPSS 0.11% · P29
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I. Basic Information for CVE-2025-5688

Vulnerability Information
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Vulnerability Title
Out of Bounds Write in FreeRTOS-Plus-TCP
Source: NVD (National Vulnerability Database)
Vulnerability Description
We have identified a buffer overflow issue allowing out-of-bounds write when processing LLMNR or mDNS queries with very long DNS names. This issue only affects systems using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled. Users should 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
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
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，该漏洞源于处理LLMNR或mDNS查询时存在缓冲区溢出，可能导致越界写入。
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

VendorProductAffected VersionsCPESubscribe
AmazonFreeRTOS 2.3.4 ~ 4.3.2 -

II. Public POCs for CVE-2025-5688

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III. Intelligence Information for CVE-2025-5688

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IV. Related Vulnerabilities

Same vendor: Amazon
Same weakness: CWE-787

V. Comments for CVE-2025-5688

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