CVE-2007-1833

The Skinny Call Control Protocol (SCCP) implementation in Cisco Unified CallManager (CUCM) 3.3 before 3.3(5)SR2a, 4.1 before 4.1(3)SR4, 4.2 before 4.2(3)SR1, and 5.0 before 5.0(4a)SU1 allows remote attackers to cause a denial of service (loss of voice services) by sending crafted packets to the (1) SCCP (2000/tcp) or (2) SCCPS (2443/tcp) port.

Published: Apr 3, 2007
Updated: Nov 9, 2025
CVE: CVE-2007-1833
Severity: Medium
Exploit:

CVSS v2:

Severity: Medium
Score: 5
AV:N/AC:L/Au:N/C:N/I:N/A:P

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
cisco / unified_callmanager	3.3(2)	3.3(2).x
cisco / unified_callmanager	3.3(5)sr1a	3.3(5)sr1a.x
cisco / unified_callmanager	3.3(3)sr1	3.3(3)sr1.x
cisco / unified_callmanager	5.0(2)	5.0(2).x
cisco / unified_callmanager	4.1(3)	4.1(3).x
cisco / unified_callmanager	4.2	4.2.x
cisco / unified_callmanager	4.1(3)sr1	4.1(3)sr1.x
cisco / unified_callmanager	4.1(2)	4.1(2).x
cisco / unified_callmanager	3.3(5)	3.3(5).x
cisco / unified_callmanager	5.0(3)	5.0(3).x
cisco / unified_callmanager	5.0(3a)	5.0(3a).x
cisco / unified_callmanager	4.1	4.1.x
cisco / unified_callmanager	4.1(3)sr2	4.1(3)sr2.x
cisco / unified_callmanager	4.1(3)sr3	4.1(3)sr3.x
cisco / unified_callmanager	3.3(2)spc	3.3(2)spc.x
cisco / unified_callmanager	5.0(1)	5.0(1).x
cisco / unified_callmanager	3.3(4)	3.3(4).x
cisco / unified_callmanager	3.3	3.3.x
cisco / unified_callmanager	3.3(4)sr1a	3.3(4)sr1a.x
cisco / unified_callmanager	3.3(2)spb	3.3(2)spb.x
cisco / unified_callmanager	3.3(3)sr4	3.3(3)sr4.x
cisco / unified_callmanager	5.0(4)	5.0(4).x
cisco / unified_callmanager	5.0	5.0.x
cisco / unified_callmanager	3.3(5)sr1	3.3(5)sr1.x
cisco / unified_callmanager	3.3(3)	3.3(3).x

Vulnerability Database

324,311

CVE-2007-1833

Deep Security Visibility Without the Complexity