CVE-2021-20843
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 allows a remote authenticated attacker to alter the…
Does this matter?
Lower severity and a low EPSS score (0.67%). Track it; it rarely justifies an emergency change on its own.
Description
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 allows a remote authenticated attacker to alter the settings of the product via a specially crafted web page.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.67% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-829
- Affected
- yamaha/rtx830 firmware · yamaha/nvr510 firmware · yamaha/nvr700w firmware · yamaha/rtx1210 firmware · ntt-west/biz box rtx830 firmware · ntt-west/biz box nvr510 firmware · ntt-west/biz box nvr700w firmware · ntt-west/biz box rtx1210 firmware
- Source
- vultures@jpcert.or.jp
References
- http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.htmlMitigation, Vendor Advisory
- https://business.ntt-east.co.jp/topics/2021/11_09.htmlMitigation, Vendor Advisory
- https://jvn.jp/en/vu/JVNVU91161784/index.htmlMitigation, Third Party Advisory
- https://www.ntt-west.co.jp/smb/kiki_info/info/211109.htmlMitigation, Vendor Advisory
- http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.htmlMitigation, Vendor Advisory
- https://business.ntt-east.co.jp/topics/2021/11_09.htmlMitigation, Vendor Advisory
- https://jvn.jp/en/vu/JVNVU91161784/index.htmlMitigation, Third Party Advisory
- https://www.ntt-west.co.jp/smb/kiki_info/info/211109.htmlMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.