CVE-2021-20854: OS Command Injection
First published: Wed Dec 01 2021(Updated: )
ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a network-adjacent attacker with an administrator privilege to execute arbitrary OS commands via unspecified vectors.
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Elecom Wrh-733gbk Firmware | <=1.02.9 | |
| Elecom Wrh-733gbk | ||
| Elecom Wrh-733gwh Firmware | <=1.02.9 | |
| Elecom Wrh-733gwh |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of ELECOM LAN routers?
The vulnerability ID of ELECOM LAN routers is CVE-2021-20854.
What is the severity of CVE-2021-20854?
The severity of CVE-2021-20854 is medium with a CVSS score of 6.8.
Which ELECOM LAN router models are affected by CVE-2021-20854?
ELECOM LAN routers with WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior are affected by CVE-2021-20854.
How can a network-adjacent attacker exploit CVE-2021-20854?
A network-adjacent attacker with administrator privilege can execute arbitrary OS commands through unspecified vectors.
Is there a fix available for CVE-2021-20854?
The vendor has released updated firmware to address CVE-2021-20854. Please refer to the vendor's security advisory for more information.
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- vendor/elecom
- canonical/elecom wrh-733gbk firmware
- version/elecom wrh-733gbk firmware/1.02.9
- canonical/elecom wrh-733gbk
- canonical/elecom wrh-733gwh firmware
- version/elecom wrh-733gwh firmware/1.02.9
- canonical/elecom wrh-733gwh