CVE-2021-1547: Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities
Multiple vulnerabilities in the web-based management interface of certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points could allow an authenticated, remote attacker to perform command injection attacks against an affected device. These vulnerabilities are due to improper validation of user-supplied input. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the device. To exploit these vulnerabilities, the attacker must have valid administrative credentials for the device.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-1547.
What is the severity of CVE-2021-1547?
The severity of CVE-2021-1547 is critical with a severity value of 7.2.
How can an attacker exploit CVE-2021-1547?
An attacker can exploit CVE-2021-1547 by performing command injection attacks against an affected device through the web-based management interface.
Which Cisco Small Business Wireless Access Points are affected by CVE-2021-1547?
Certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points are affected by CVE-2021-1547.
How can I fix the vulnerability?
To fix the vulnerability, update the firmware of the affected Cisco Small Business Wireless Access Points to the latest version.