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Vulnerability record · CVE-2006-0368 · published 22 January 2006

CVE-2006-0368: Cisco call manager vulnerability

Cisco · Call Manager

Cisco CallManager 3.2 and earlier, 3.3 before 3.3(5)SR1, 4.0 before 4.0(2a)SR2c, and 4.1 before 4.1(3)SR2 allow remote attackers to (1) cause a denial of service (CPU and memory consumption) via a large number of open TCP connections to port 2000 and (2) cause a denial of service (fill the Windows Service Manager communication queue) via a large number of TCP connections to port 2001, 2002, or 7727.

7.8 CVSS 2.0 High EPSS 3.7% · top 10.6%
7.8CVSS 2.0 base score
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

Description

Cisco CallManager 3.2 and earlier, 3.3 before 3.3(5)SR1, 4.0 before 4.0(2a)SR2c, and 4.1 before 4.1(3)SR2 allow remote attackers to (1) cause a denial of service (CPU and memory consumption) via a large number of open TCP connections to port 2000 and (2) cause a denial of service (fill the Windows Service Manager communication queue) via a large number of TCP connections to port 2001, 2002, or 7727.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/18494 PatchVendor Advisory
http://securityreason.com/securityalert/359
http://securitytracker.com/id?1015503
http://www.cisco.com/warp/public/707/cisco-sa-20060118-ccmdos.shtml
http://www.osvdb.org/22622
http://www.osvdb.org/22623
http://www.securityfocus.com/bid/16295
http://www.vupen.com/english/advisories/2006/0249
https://exchange.xforce.ibmcloud.com/vulnerabilities/24180
http://secunia.com/advisories/18494 PatchVendor Advisory
http://securityreason.com/securityalert/359
http://securitytracker.com/id?1015503
http://www.cisco.com/warp/public/707/cisco-sa-20060118-ccmdos.shtml
http://www.osvdb.org/22622
http://www.osvdb.org/22623
http://www.securityfocus.com/bid/16295
http://www.vupen.com/english/advisories/2006/0249
https://exchange.xforce.ibmcloud.com/vulnerabilities/24180

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2006-0368), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.