Rewindex/CVEs/Amazon Web Services

CVE-2026-102552: Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP DNS resolver

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.

Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N · CWE-940

Tracked companies

Amazon Web Services

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

FreeRTOS: FreeRTOS-Plus-TCP

References

• CVE record on cve.org (opens in new tab)
• NVD entry (opens in new tab)
• aws.amazon.com/security/security-bulletins/2026-139-aws/ (opens in new tab)
• github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.2 (opens in new tab)
• github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-h4fw-pv82-p7h5 (opens in new tab)

All CVEsMarkdownJSON

• CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
• This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
• Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
• EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)