CVE-2026-7425
Out-of-Bounds Read in Router Advertisement Option Parser in FreeRTOS-Plus-TCP
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | aws |
| Product | freertos-plus-tcp |
| Published | Apr 29, 2026 |
| Last Updated | Apr 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
AWS / FreeRTOS-Plus-TCP
4.0.0 < 4.2.6 4.3.0 < 4.4.1