CVE-2021-20844

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.

Category

5.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Vendor Advisory co.jp Vendor Advisory co.jp Vendor Advisory co.jp
Affected: Yamaha Corporation RTX830, NVR510, NVR700W, RTX1210
Published at:
Updated at:

References

Link Tags
https://www.ntt-west.co.jp/smb/kiki_info/info/211109.html mitigation vendor advisory
https://business.ntt-east.co.jp/topics/2021/11_09.html mitigation vendor advisory
http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.html mitigation vendor advisory
https://jvn.jp/en/vu/JVNVU91161784/index.html mitigation third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20844?
CVE-2021-20844 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20844?
To fix CVE-2021-20844, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20844 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20844 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20844?
CVE-2021-20844 affects Yamaha Corporation RTX830, NVR510, NVR700W, RTX1210.
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