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
5.0
MEDIUMCVSS 2.0
EPSS 2.35%
Description
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.
Affected products
No data.
- 3.3
- 3.3\(2\)
- 3.3\(2\)spb
- 3.3\(2\)spc
- 3.3\(3\)
- 3.3\(3\)sr1
- 3.3\(3\)sr4
- 3.3\(4\)
- 3.3\(4\)sr1a
- 3.3\(5\)
- 3.3\(5\)sr1
- 3.3\(5\)sr1a
- 4.1
- 4.1\(2\)
- 4.1\(3\)
- 4.1\(3\)sr1
- 4.1\(3\)sr2
- 4.1\(3\)sr3
- 4.2
- 5.0
- 5.0\(1\)
- 5.0\(2\)
- 5.0\(3\)
- 5.0\(3a\)
- 5.0\(4\)
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.35% (0.02354) | 83.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.35% (0.02354) | 81.46th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.55% (0.02554) | 84.47th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.46% (0.05458) | 93.07th | v3 (v2023.03.01) |
| Mar 14, 2024 | 10.27% (0.10275) | 94.81th | v3 (v2023.03.01) |
| Feb 4, 2024 | 6.32% (0.06319) | 92.96th | v3 (v2023.03.01) |
| Dec 28, 2023 | 4.91% (0.04907) | 91.98th | v3 (v2023.03.01) |
| Nov 20, 2023 | 6.00% (0.06000) | 92.69th | v3 (v2023.03.01) |
| Oct 13, 2023 | 3.60% (0.03597) | 90.56th | v3 (v2023.03.01) |
| Sep 4, 2023 | 2.68% (0.02676) | 89.11th | v3 (v2023.03.01) |
| Apr 8, 2023 | 2.52% (0.02521) | 88.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.33% (0.02334) | 88.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- http://secunia.com/advisories/24665 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securitytracker.com/id?1017826 vdb-entryx_refsource_SECTRACKPatch
- http://www.cisco.com/warp/public/707/cisco-sa-20070328-voip.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.securityfocus.com/bid/23181 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2007/1144 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33295 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/24665 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securitytracker.com/id?1017826 | vdb-entryx_refsource_SECTRACKPatch | |
| http://www.cisco.com/warp/public/707/cisco-sa-20070328-voip.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.securityfocus.com/bid/23181 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2007/1144 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/33295 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.