CVE-2026-7424 | BDVDB-2026-329617 Detail
AWSFreeRTOS-Plus-TCP
Description#
Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of service (permanent IP task freeze requiring hardware reset) by sending a single crafted DHCPv6 packet. The issue is present whenever DHCPv6 is enabled. To mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.
Impact#
CAPEC-153: Input Data Manipulation
Weaknesses#
- CWE-191 Integer Underflow (Wrap or Wraparound)
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.