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VULNERABILITIES

CVE-2026-102552 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://aws.amazon.com/security/security-bulletins/2026-139-aws/ AMZN
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.2 AMZN
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-h4fw-pv82-p7h5 AMZN

Weakness Enumeration

CWE-IDCWE NameSource
CWE-940Improper Verification of Source of a Communication ChannelAMZN

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-102552
NVD Published Date:
Oct 16, 2026
NVD Last Modified:
Oct 19, 2026
Source:
AMZN
CVE-2026-102552 Details - Not Deferred