CVE-2021-20844

medium

Description

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 earlier, and RTX1210 Rev.14.01.38 and earlier allows a remote authenticated attacker to obtain sensitive information via a specially crafted web page.

References

https://www.ntt-west.co.jp/smb/kiki_info/info/211109.html

https://jvn.jp/en/vu/JVNVU91161784/index.html

https://business.ntt-east.co.jp/topics/2021/11_09.html

http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.html

Details

Source: Mitre, NVD

Published: 2021-11-24

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 3.5

Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 5.7

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00338