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Cisco Meeting Server Call Bridge Denial of Service Vulnerability

cisco-sa-cms-LAHe8z5v · Medium · Published · Updated

A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2021-40122
Cisco Bug IDsCSCvz44400
CVSS ScoreBase 5.9
Base 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Meeting Server

Related Products

Product CVE Evidence
Cisco Meeting Server CVE-2021-40122 Cisco OpenVuln