CVE-2026-7425CWE-125

Out-of-Bounds Read in Router Advertisement Option Parser in FreeRTOS-Plus-TCP

Medium · published April 29, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
30.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
Vector
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00376 · 30.4th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-04-29T18:52Z
EPSS history
Timeline
  • 29 APR 18:52Z
    Out-of-Bounds Read in Router Advertisement Option Parser in FreeRTOS-Plus-TCP
    cvelistv5