CVE-2026-7425EPSS p14.1%
CVE-2026-7425CVE-2026-7425
amazon / freertos-plus-tcp
Description
Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause a denial of service (device crash) by sending a crafted Router Advertisement with a truncated PREFIX_INFORMATION option that is smaller than the expected structure size.
To mitigate this issue, users should upgrade to the fixed version when available.
Scoring
| CVSS | 6.5 () |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.23% probability of exploitation · percentile 14.1% · 2026-10-27T12:03:15Z |
| Last modified | 2026-10-26 |