Vulnerability Monitor

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CVE-2020-3596

A vulnerability in the Session Initiation Protocol (SIP) of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect handling of incoming SIP traffic. An attacker could exploit this vulnerability by sending a series of SIP packets to an affected device. A successful exploit could allow the attacker to exhaust memory on an affected device, causing it to crash and leading to a DoS condition.

Published

2020-10-08T05:15:15.557

Last Modified

2024-11-21T05:31:22.993

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-789
  • Type: Primary
    CWE-670
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco expressway ≤ x12.6.3 Yes
Application cisco telepresence_video_communication_server ≤ x12.6.3 Yes
References