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CRITICAL · 9.8

CVE-2024-20450

Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote a...

Vulnerability Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system with root privileges. These vulnerabilities exist because incoming HTTP packets are not properly checked for errors, which could result in a buffer overflow. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to overflow an internal buffer and execute arbitrary commands at the root privilege level.

CVSS Score

9.8

CRITICAL

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

Affected Products

VendorProductVersions
CiscoSpa 301 FirmwareAll versions
CiscoSpa 301 1 Line Ip Phone-
CiscoSpa 303 FirmwareAll versions
CiscoSpa 303 3 Line Ip Phone-
CiscoSpa 501G FirmwareAll versions
CiscoSpa 501G 8-Line Ip Phone-
CiscoSpa 502G FirmwareAll versions
CiscoSpa 502G 1-Line Ip Phone-
CiscoSpa 504G FirmwareAll versions
CiscoSpa 504G 4-Line Ip Phone-
CiscoSpa 508G FirmwareAll versions
CiscoSpa 508G 8-Line Ip Phone-
CiscoSpa 509G FirmwareAll versions
CiscoSpa 509G 12-Line Ip Phone-
CiscoSpa 512G FirmwareAll versions
CiscoSpa 512G 1-Line Ip Phone-
CiscoSpa 514G FirmwareAll versions
CiscoSpa 514G 4-Line Ip Phone-
CiscoSpa 525G FirmwareAll versions
CiscoSpa 525G 5-Line Ip Phone-

Related Weaknesses (CWE)

CWE-120

References

FAQ

What is CVE-2024-20450?

CVE-2024-20450 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote a...

How severe is CVE-2024-20450?

CVE-2024-20450 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2024-20450?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Spa 301 Firmware, Cisco Spa 301 1 Line Ip Phone, Cisco Spa 303 Firmware, Cisco Spa 303 3 Line Ip Phone, Cisco Spa 501G Firmware.