CVE-2021-40122

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:meeting_server::::::::
	cpe:2.3:a:cisco:meeting_server::::::::

History

No history.

Information

Published : 2021-10-21 03:15

Updated : 2023-11-07 03:38

NVD link : CVE-2021-40122

Mitre link : CVE-2021-40122

CVE.ORG link : CVE-2021-40122

JSON object : View

Products Affected

cisco

meeting_server

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-399

Resource Management Errors

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