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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRTOS | FreeRTOS-Plus-TCP | ≤ 4.4.1 | — |
References
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.2 release-notes patch
- https://aws.amazon.com/security/security-bulletins/2026-139-aws/ vendor-advisory
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-pjq5-fqrr-g6pv third-party-advisory