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Critical

Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP Router Advertisement handling

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-102551

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-102551

FreeRTOS-Plus-TCP

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "FreeRTOS",
    "product": "FreeRTOS-Plus-TCP",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "4.4.1"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-102551

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#38820 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement