Vulnerability in Amazon Freertos-plus-tcp
CVE-2025-11616
A missing validation check in FreeRTOS-Plus-TCP's ICMPv6 packet processing code can lead to an out-of-bounds read when receiving ICMPv6 packets of certain message types which are smaller than the expected size. These issues only affect app…
EPSS: 0.003 (20.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L.
Affected products
- Amazon Freertos-plus-tcp
- Aws Freertos-plus_tcp — versions 4.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (product, Release Notes, patch)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory, Vendor Advisory)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-11616?
- CVE-2025-11616 is a medium-severity vulnerability in Amazon Freertos-plus-tcp, classified under Buffer Over-read. CVSS score: 5.4/10. Published 2025-10-10.
- How severe is CVE-2025-11616?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2025-11616 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.