RCE in Cisco Business Wireless Access Point Software

CVE-2021-1547

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.016 (73.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-1547?
CVE-2021-1547 is a medium-severity vulnerability in Cisco Business Wireless Access Point Software, classified under Command Injection. CVSS score: 4.7/10. Published 2021-05-22.
How severe is CVE-2021-1547?
Medium severity. CVSS v3 base score is 4.7 out of 10.