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Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-T","CVE":"CVE-2026-7424","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"7424","Ordinal":"1","NoteData":"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.\n\n\n\n\n\n\n\n\nThe issue is present whenever DHCPv6 is enabled.\n\n\n\n\n\n\n\n\nTo mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.","Type":"Description","Title":"Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-T"}]}}}