CVE-2021-20863

Description

OS command injection vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent authenticated attackers to execute an arbitrary OS command with the root privilege via unspecified vectors.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.24% Top 25%
Vendor Advisory co.jp
Affected: ELECOM CO.,LTD. ELECOM routers
Published at:
Updated at:

References

Link Tags
https://www.elecom.co.jp/news/security/20211130-01/ vendor advisory
https://jvn.jp/en/vu/JVNVU94527926/index.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20863?
CVE-2021-20863 has been scored as a high severity vulnerability.
How to fix CVE-2021-20863?
To fix CVE-2021-20863, 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-2021-20863 being actively exploited in the wild?
It is possible that CVE-2021-20863 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20863?
CVE-2021-20863 affects ELECOM CO.,LTD. ELECOM routers.
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