VYPR
Unrated severityNVD Advisory· Published May 22, 2021· Updated Nov 8, 2024

Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities

CVE-2021-1551

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Multiple command injection vulnerabilities in Cisco Small Business 100, 300, and 500 Series Wireless Access Points allow authenticated remote attackers to execute arbitrary commands with root privileges.

Vulnerability

Multiple command injection vulnerabilities exist in the web-based management interface of certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points. The vulnerabilities are due to improper validation of user-supplied input. Affected products include WAP125, WAP150, WAP361, WAP581, as well as end-of-life models WAP121, WAP131, WAP321, and WAP351 [1].

Exploitation

An attacker must have valid administrative credentials to the device. The attacker can send crafted HTTP requests to the web-based management interface to exploit the vulnerabilities. No user interaction is required beyond the initial authentication [1].

Impact

Successful exploitation allows the attacker to execute arbitrary commands with root privileges on the affected device, leading to full compromise of the access point [1].

Mitigation

Fixed firmware versions are available: WAP125: 1.0.4.3, WAP150: 1.1.3.2, WAP361: 1.1.3.2, WAP581: 1.0.4.4. For end-of-life models (WAP121, WAP131, WAP321, WAP351), no firmware updates will be released; customers should migrate to supported products [1].

AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

2

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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