CVE-2006-0368

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.

Published: 2006-01-22 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-0368 is rated Moderate Risk (62.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.64%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-0368

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.75% 3.64% +0.89%
2 2025-06-23 2.76% 2.75% -0.01%
3 2025-03-30 — 2.76% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-0368

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2006-0368

Affected software / configurations for CVE-2006-0368

Vendor Product Version Raw CPE
cisco call_manager — cpe:2.3:h:cisco:call_manager:*:*:*:*:*:*:*:*
cisco call_manager 1.0 cpe:2.3:h:cisco:call_manager:1.0:*:*:*:*:*:*:*
cisco call_manager 2.0 cpe:2.3:h:cisco:call_manager:2.0:*:*:*:*:*:*:*
cisco call_manager 3.0 cpe:2.3:h:cisco:call_manager:3.0:*:*:*:*:*:*:*
cisco call_manager 3.1 cpe:2.3:h:cisco:call_manager:3.1:*:*:*:*:*:*:*
cisco call_manager 3.1\(2\) cpe:2.3:h:cisco:call_manager:3.1\(2\):*:*:*:*:*:*:*
cisco call_manager 3.1\(3a\) cpe:2.3:h:cisco:call_manager:3.1\(3a\):*:*:*:*:*:*:*
cisco call_manager 3.2 cpe:2.3:h:cisco:call_manager:3.2:*:*:*:*:*:*:*
cisco call_manager 3.3 cpe:2.3:h:cisco:call_manager:3.3:*:*:*:*:*:*:*
cisco call_manager 3.3\(3\) cpe:2.3:h:cisco:call_manager:3.3\(3\):*:*:*:*:*:*:*
cisco call_manager 3.3\(3\)es61 cpe:2.3:h:cisco:call_manager:3.3\(3\)es61:*:*:*:*:*:*:*
cisco call_manager 3.3\(4\)es25 cpe:2.3:h:cisco:call_manager:3.3\(4\)es25:*:*:*:*:*:*:*
cisco call_manager 3.3\(5\) cpe:2.3:h:cisco:call_manager:3.3\(5\):*:*:*:*:*:*:*
cisco call_manager 3.3\(5\)es30 cpe:2.3:h:cisco:call_manager:3.3\(5\)es30:*:*:*:*:*:*:*
cisco call_manager 4.0 cpe:2.3:h:cisco:call_manager:4.0:*:*:*:*:*:*:*
cisco call_manager 4.0\(2a\)es40 cpe:2.3:h:cisco:call_manager:4.0\(2a\)es40:*:*:*:*:*:*:*
cisco call_manager 4.0\(2a\)es62 cpe:2.3:h:cisco:call_manager:4.0\(2a\)es62:*:*:*:*:*:*:*
cisco call_manager 4.0\(2a\)sr2b cpe:2.3:h:cisco:call_manager:4.0\(2a\)sr2b:*:*:*:*:*:*:*
cisco call_manager 4.1\(2\)es33 cpe:2.3:h:cisco:call_manager:4.1\(2\)es33:*:*:*:*:*:*:*
cisco call_manager 4.1\(2\)es55 cpe:2.3:h:cisco:call_manager:4.1\(2\)es55:*:*:*:*:*:*:*
cisco call_manager 4.1\(3\)es07 cpe:2.3:h:cisco:call_manager:4.1\(3\)es07:*:*:*:*:*:*:*
cisco call_manager 4.1\(3\)es32 cpe:2.3:h:cisco:call_manager:4.1\(3\)es32:*:*:*:*:*:*:*
cisco call_manager 4.1\(3\)sr1 cpe:2.3:h:cisco:call_manager:4.1\(3\)sr1:*:*:*:*:*:*:*

References for CVE-2006-0368

cvelogic Threat Intelligence