The Skinny Call Control Protocol (SCCP) implementation in Cisco Unified CallManager…
Priority LOW 27Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.02429 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_callmanager:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(2\):*:*:*:*:*:*:* | 3.3(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(2\)spb:*:*:*:*:*:*:* | 3.3(2)spb | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(2\)spc:*:*:*:*:*:*:* | 3.3(2)spc | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(3\):*:*:*:*:*:*:* | 3.3(3) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(3\)sr1:*:*:*:*:*:*:* | 3.3(3)sr1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(3\)sr4:*:*:*:*:*:*:* | 3.3(3)sr4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(4\):*:*:*:*:*:*:* | 3.3(4) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(4\)sr1a:*:*:*:*:*:*:* | 3.3(4)sr1a | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(5\):*:*:*:*:*:*:* | 3.3(5) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_callmanager:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(2\):*:*:*:*:*:*:* Versions 3.3(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(2\)spb:*:*:*:*:*:*:* Versions 3.3(2)spb Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(2\)spc:*:*:*:*:*:*:* Versions 3.3(2)spc Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(3\):*:*:*:*:*:*:* Versions 3.3(3) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(3\)sr1:*:*:*:*:*:*:* Versions 3.3(3)sr1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(3\)sr4:*:*:*:*:*:*:* Versions 3.3(3)sr4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(4\):*:*:*:*:*:*:* Versions 3.3(4) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(4\)sr1a:*:*:*:*:*:*:* Versions 3.3(4)sr1a Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(5\):*:*:*:*:*:*:* Versions 3.3(5) Vulnerable ·Cisco
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_callmanager:3.3\(5\)sr1:*:*:*:*:*:*:* | 3.3(5)sr1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:3.3\(5\)sr1a:*:*:*:*:*:*:* | 3.3(5)sr1a | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1\(2\):*:*:*:*:*:*:* | 4.1(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1\(3\):*:*:*:*:*:*:* | 4.1(3) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr1:*:*:*:*:*:*:* | 4.1(3)sr1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr2:*:*:*:*:*:*:* | 4.1(3)sr2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr3:*:*:*:*:*:*:* | 4.1(3)sr3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:4.2:*:*:*:*:*:*:* | 4.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0\(1\):*:*:*:*:*:*:* | 5.0(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0\(2\):*:*:*:*:*:*:* | 5.0(2) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0\(3\):*:*:*:*:*:*:* | 5.0(3) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0\(3a\):*:*:*:*:*:*:* | 5.0(3a) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_callmanager:5.0\(4\):*:*:*:*:*:*:* | 5.0(4) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_callmanager:3.3\(5\)sr1:*:*:*:*:*:*:* Versions 3.3(5)sr1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:3.3\(5\)sr1a:*:*:*:*:*:*:* Versions 3.3(5)sr1a Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1\(2\):*:*:*:*:*:*:* Versions 4.1(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1\(3\):*:*:*:*:*:*:* Versions 4.1(3) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr1:*:*:*:*:*:*:* Versions 4.1(3)sr1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr2:*:*:*:*:*:*:* Versions 4.1(3)sr2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.1\(3\)sr3:*:*:*:*:*:*:* Versions 4.1(3)sr3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:4.2:*:*:*:*:*:*:* Versions 4.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0\(1\):*:*:*:*:*:*:* Versions 5.0(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0\(2\):*:*:*:*:*:*:* Versions 5.0(2) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0\(3\):*:*:*:*:*:*:* Versions 5.0(3) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0\(3a\):*:*:*:*:*:*:* Versions 5.0(3a) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_callmanager:5.0\(4\):*:*:*:*:*:*:* Versions 5.0(4) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-1833
- 2026-10-03 Alias added: GHSA-6p2g-28fm-38rf
References
More Cisco Unified Callmanager vulnerabilities
- TI-2008-00019 Heap-based buffer overflow in the Certificate Trust List (CTL) Provider service… CVSS 2.0HIGH 10.0
- TI-2006-05092 Integer overflow in the Real-Time Information Server (RIS) Data Collector service… CVSS 2.0HIGH 10.0
- TI-2006-05091 Off-by-one error in the Certificate Trust List (CTL) Provider service (CTLProvider.exe)… CVSS 2.0HIGH 9.3
- TI-2007-05323 Buffer overflow in the Centralized TFTP File Locator Service in Cisco Unified… CVSS 2.0HIGH 10.0
- TI-2006-05364 Cisco Security Agent (CSA) for Linux 4.5 before 4.5.1.657 and 5.0 before 5.0.0.193, as… CVSS 2.0HIGH 7.8
- TI-2009-02727 Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g)… CVSS 2.0HIGH 7.8
Sources
- CVE-2007-1833 · CVE Program
- CVE-2007-1833 · NVD
- FIRST EPSS
- GHSA-6p2g-28fm-38rf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences