HIGH

CVE-2026-102551

CVSS v3

7.7

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-102551 yet.

Full record on NVD

Description

Improper verification of the source of a communication channel in the IPv6 Router Advertisement handler in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow a remote third-party to influence an endpoint's IPv6 default gateway, on-link prefix, and address configuration via a crafted Router Advertisement. To remediate this issue, users should upgrade to version V4.4.2.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Published: 2026-10-16
Last Modified: 2026-10-16

Frequently asked questions

What is CVE-2026-102551?

Is CVE-2026-102551 actively exploited?

Active exploitation of CVE-2026-102551 has not been confirmed.

What is the CVSS score for CVE-2026-102551?

CVE-2026-102551 has a CVSS v3 base score of 7.7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.

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