What’s Vulnerable › Vulnerabilities

CVE-2019-1678: Cisco Meeting Server Denial of Service Vulnerability

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-02-07 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability in Cisco Meeting Server could allow an authenticated, remote attacker to cause a partial denial of service (DoS) to Cisco Meetings application users who are paired with a Session Initiation Protocol (SIP) endpoint. The vulnerability is due to improper validation of coSpaces configuration parameters. An attacker could exploit this vulnerability by inserting crafted strings in specific coSpace parameters. An exploit could allow the attacker to prevent clients from joining a conference call in the affected coSpace. Versions prior to 2.4.3 are affected.

Affected products

• Cisco Meeting Server: 2.3.6

References

• http://www.securityfocus.com/bid/106943
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206-cms-dos
• http://www.securityfocus.com/bid/106943
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206-cms-dos

Get alerted when CVE-2019-1678 or the next vulnerability affects your stack