HIGH 8.2 NVD
CVE-2026-102552
Improper verification of the source of a communication channel in the DNS resolver in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow remote third-party to i
Improper verification of the source of a communication channel in the DNS resolver in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow remote third-party to insert a chosen address into the device's DNS cache via a forged DNS reply.
To remediate this issue, users should upgrade to version V4.4.2 and enable ipconfigDNS_CHECK_REPLY_SOURCE_IP.
References
- https://aws.amazon.com/security/security-bulletins/2026-139-aws/
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.2
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-h4fw-pv82-p7h5
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-10-16 via NVD.
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