FreeRTOS-Plus-TCP DNS Spoofing & Cache Poisoning (CVE-2026-102551/52) Advisory
Security Advisory
CVE-2026-102551
High
FreeRTOS
Affected:
- FreeRTOS-Plus-TCP v10.4.0 and earlier
- AWS IoT Device SDK for Embedded C v5.4.1
- AWS IoT Device SDK for Embedded C v5.4.2
Fixed in:
- FreeRTOS-Plus-TCP v10.4.1
- AWS IoT Device SDK for Embedded C v5.4.3
Referenced CVEs:
CVE-2026-102552 · 5.9
CVE-2026-102551 · 7.7
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