CVE-2026-102551 (GCVE-0-2026-102551)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:27 – Updated: 2026-10-16 17:30
VLAI
Title
Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP Router Advertisement handling
Summary
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.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
9.2 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-940 - Improper verification of source of a communication channel
Assigner
AMZN CNA under the mitre root
CNA scorecard A 94/100 over 139 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRTOS FreeRTOS-Plus-TCP Affected: 0 , ≤ 4.4.1 (custom)
    cpe:2.3:a:freertos:freertos-plus-tcp:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Causal Security
Show details on NVD website
To clipboard 

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        "dateUpdated": "2026-10-16T17:30:47.034Z",
        "orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
        "shortName": "AMZN"
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          "url": "https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.2"
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      "source": {
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    "datePublished": "2026-10-16T17:27:38.483Z",
    "dateReserved": "2026-09-29T13:04:13.721Z",
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