CVE-2021-40122

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2021-40122
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-21T03:15:07
  • Last Modified Date
  • 2021-10-25T20:25:04
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:* 1 OR 3.1
cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:* 1 OR 3.2 3.2.3
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
History
Created Old Value New Value Data Type Notes
2022-05-10 06:49:57 Added to TrackCVE
2022-12-05 12:59:59 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 12:59:59 2021-10-21T03:15Z 2021-10-21T03:15:07 CVE Published Date updated
2022-12-05 12:59:59 2021-10-25T20:25:04 CVE Modified Date updated
2022-12-05 12:59:59 Analyzed Vulnerability Status updated