Disclosure summary
A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6. We recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.
Source-reported weakness categories
CWE-476
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-11618
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| amazon | freertos-plus-tcp | * {"versionStartIncluding":"4.0.0","versionEndExcluding":"4.3.4"} |
Original records & references
- NIST NVD record
- CVE Program record
- aws.amazon.com — Vendor Advisory
- github.com — Release Notes
- github.com — Vendor Advisory
PUBLISHED 2025-10-10T14:15:38-04:00
MODIFIED 2026-10-08T09:10:00-04:00
INGESTED 2026-10-08T12:30:37-04:00