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CVE-2021-1550

HIGHCVSS 7.2/10EPSS 1.66%

Last modified

CVE-2021-1550 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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. EPSS estimates a 1.66% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.66%

73.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoWap125 Firmware<= 1.0.3.1
CiscoWap131 Firmware<= 1.0.2.17
CiscoWap150 Firmware<= 1.1.2.4
CiscoWap351 Firmware<= 1.0.2.17
CiscoWap361 Firmware<= 1.1.2.4
CiscoWap581 Firmware<= 1.0.3.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1550?
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.
How severe is CVE-2021-1550?
CVE-2021-1550 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.66% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1550?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1550?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST