RCE (Remote Code Execution) vulnerability was found in some Furukawa ONU models, this vulnerability allows remote unauthenticated users to send arbitrary commands to the device via web interface.

Furukawa Electric LatAm 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were discovered to contain an HTML injection vulnerability via the serial number update function.

Multiple unspecified vulnerabilities in multiple FITELnet products, including FITELnet-F40, F80, F100, F120, F1000, and E20/E30, allow remote attackers to cause a denial of service via crafted DNS messages that trigger errors in (1) ProxyDNS or (2) PKI-Resolver, as demonstrated by the OUSPG PROTOS DNS test suite.