Executive Summary

Title Cisco TelePresence ISDN Gateway D-Channel Denial of Service Vulnerability
Name cisco-sa-20140122-isdngw First vendor Publication 2014-01-22
Vendor Cisco Last vendor Modification 2014-01-22
Severity (Vendor) N/A Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.1 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Cisco TelePresence ISDN Gateway contains a vulnerability that could allow an unauthenticated, remote attacker to trigger the drop of the data channel (D-channel) causing all calls to be terminated and preventing users from making new calls.

Cisco has released free software updates that address this vulnerability. No workarounds that mitigate this vulnerability are available. This advisory is available at the following link:


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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

Application 3

Information Assurance Vulnerability Management (IAVM)

Date Description
2014-01-30 IAVM : 2014-A-0015 - Cisco TelePresence ISDN Gateway Denial of Service Vulnerability
Severity : Category I - VMSKEY : V0043845

Nessus® Vulnerability Scanner

Date Description
2014-01-28 Name : The remote device is affected by a denial of service vulnerability.
File : cisco-sa-20140122-isdngw.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 10:22:13
  • Multiple Updates
2014-01-31 21:20:33
  • Multiple Updates
2014-01-23 21:24:58
  • Multiple Updates
2014-01-22 21:19:20
  • First insertion