Yamaha RTX830 Firmware vulnerabilities

3 CVEs affecting Yamaha RTX830 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-20844, published 2021-11-24.

More from Yamaha.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2020-5548, published 2020-04-01. High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days. Yamaha LTE VoIP Router(NVR700W firmware Rev.15.00.15 and earlier), Yamaha Gigabit VoIP Router(NVR510 firmware Rev.15.01.14 and earlier), Yamaha Gigabit VPN Router(RTX810 firmware Rev.11.01.33 and…
• CVE-2021-20844, published 2021-11-24. Medium severity, CVSS 5.7. EPSS: 1% chance of exploitation in the next 30 days. Improper neutralization of HTTP request headers for scripting syntax vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and…
• CVE-2021-20843, published 2021-11-24. Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days. Cross-site script inclusion vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and earlier, and RTX1210 Rev.14.01.38 and earlier…