Yamaha Rtx830 Firmware vulnerabilities

• ntt-west biz box nvr510 firmware, biz box nvr700w firmware, biz box rtx1210 firmware +6 more +8 more Improper neutralization of HTTP request headers for scripting syntax vulnerability in the Web GUI... CVE-2021-20844 5.7 MediumNovember 24, 2021
• ntt-west biz box nvr510 firmware, biz box nvr700w firmware, biz box rtx1210 firmware +6 more +8 more Cross-site script inclusion vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier,... CVE-2021-20843 5.4 MediumNovember 24, 2021
• yamaha fwx120 firmware, nvr500 firmware, nvr510 firmware +8 more +10 more Yamaha LTE VoIP Router(NVR700W firmware Rev.15.00.15 and earlier), Yamaha Gigabit VoIP Router... CVE-2020-5548 7.5 HighApril 1, 2020