CVSS 3.1 Score 5.9 of 10 (medium)


Published May 1, 2024
CWE ID 787


CVE-2024-20357 is a vulnerability in the XML service of Cisco IP Phone firmware that allows an unauthenticated, remote attacker to initiate phone calls on an affected device. The vulnerability is caused by a lack of bounds-checking while parsing XML requests. An attacker can exploit this vulnerability by sending a crafted XML request to the device, which could enable them to make phone calls or play sounds on the compromised device. This vulnerability has a base severity rating of MEDIUM and requires no special privileges or user interaction. The potential danger it poses to organizations is high integrity impact, as it could allow unauthorized individuals to manipulate phone functionality on affected devices.

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