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MEDIUM · 5.3

CVE-2021-40127

A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable...

Vulnerability Description

A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable Managed Switches could allow an unauthenticated, remote attacker to render the web-based management interface unusable, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to cause a permanent invalid redirect for requests sent to the web-based management interface of the device, resulting in a DoS condition.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
CiscoSf200-24 Firmware-
CiscoSf200-24-
CiscoSf200-24Fp Firmware-
CiscoSf200-24Fp-
CiscoSf200-24P Firmware-
CiscoSf200-24P-
CiscoSf200-48 Firmware-
CiscoSf200-48-
CiscoSf200-48P Firmware-
CiscoSf200-48P-
CiscoSf200E-24 Firmware-
CiscoSf200E-24-
CiscoSf200E-24P Firmware-
CiscoSf200E-24P-
CiscoSf200E-48 Firmware-
CiscoSf200E-48-
CiscoSf200E-48P Firmware-
CiscoSf200E-48P-
CiscoSg200-08 Firmware-
CiscoSg200-08-

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2021-40127?

CVE-2021-40127 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable...

How severe is CVE-2021-40127?

CVE-2021-40127 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-40127?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Sf200-24 Firmware, Cisco Sf200-24, Cisco Sf200-24Fp Firmware, Cisco Sf200-24Fp, Cisco Sf200-24P Firmware.