Command Injection Vulnerability in ELECOM LAN Routers
CVE-2021-20853

6.8MEDIUM

Key Information:

Vendor

Elecom Co.,ltd.

Status
Elecom Lan Routers
Vendor
CVE Published:
1 December 2021

What is CVE-2021-20853?

ELECOM LAN routers, specifically the WRH-733GBK and WRH-733GWH models with firmware version 1.02.9 and earlier, are susceptible to a command injection vulnerability. This allows an attacker who has network access with administrative privileges to execute arbitrary operating system commands, potentially leading to unauthorized access and manipulation of the router's system. Network administrators should take immediate action to secure affected devices against this exploit.

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Affected Version(s)

ELECOM LAN routers WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior

References

https://www.elecom.co.jp/news/security/20211130-01/
x_refsource_MISC
https://jvn.jp/en/jp/JVN88993473/index.html
x_refsource_MISC

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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