Vulnerability Monitor

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CVE-2009-2864


Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423.


Security Impact Summary

CVE-2009-2864 is a security vulnerability that . Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.


Published

2009-09-28T19:30:01.360

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco unified_callmanager 5.0\(1\) Yes
Application cisco unified_callmanager 5.0\(2\) Yes
Application cisco unified_callmanager 5.0\(2a\) Yes
Application cisco unified_callmanager 5.0\(3\) Yes
Application cisco unified_callmanager 5.0\(3a\) Yes
Application cisco unified_callmanager 5.0\(4\) Yes
Application cisco unified_callmanager 5.0\(4a\) Yes
Application cisco unified_callmanager 5.0\(4c\) Yes
Application cisco unified_callmanager 5.1 Yes
Application cisco unified_callmanager 5.1\(1\) Yes
Application cisco unified_callmanager 5.1\(1a\) Yes
Application cisco unified_callmanager 5.1\(1c\) Yes
Application cisco unified_callmanager 5.1\(2\) Yes
Application cisco unified_callmanager 5.1\(2a\) Yes
Application cisco unified_callmanager 5.1\(2b\) Yes
Application cisco unified_callmanager 5.1\(3\) Yes
Application cisco unified_callmanager 5.1\(3a\) Yes
Application cisco unified_callmanager 5.1\(3b\) Yes
Application cisco unified_callmanager 5.1\(3c\) Yes
Application cisco unified_callmanager 6.0\(1\) Yes
Application cisco unified_callmanager 6.0\(1a\) Yes
Application cisco unified_callmanager 6.0\(1b\) Yes
Application cisco unified_callmanager 6.1 Yes
Application cisco unified_callmanager 6.1\(1\) Yes
Application cisco unified_callmanager 6.1\(1a\) Yes
Application cisco unified_callmanager 6.1\(1b\) Yes
Application cisco unified_callmanager 6.1\(2\) Yes
Application cisco unified_communications_manager 5.1\(1b\) Yes
Application cisco unified_communications_manager 5.1\(1c\) Yes
Application cisco unified_communications_manager 5.1\(2\) Yes
Application cisco unified_communications_manager 5.1\(2a\) Yes
Application cisco unified_communications_manager 5.1\(3\) Yes
Application cisco unified_communications_manager 5.1\(3a\) Yes
Application cisco unified_communications_manager 5.1\(3c\) Yes
Application cisco unified_communications_manager 5.1\(3d\) Yes
Application cisco unified_communications_manager 5.1\(3e\) Yes
Application cisco unified_communications_manager 6.1\(1\) Yes
Application cisco unified_communications_manager 6.1\(1a\) Yes
Application cisco unified_communications_manager 6.1\(1b\) Yes
Application cisco unified_communications_manager 6.1\(2\) Yes
Application cisco unified_communications_manager 6.1\(2\)su1 Yes
Application cisco unified_communications_manager 6.1\(2\)su1a Yes
Application cisco unified_communications_manager 6.1\(3\) Yes
Application cisco unified_communications_manager 7.0\(1\) Yes
Application cisco unified_communications_manager 7.0\(2\) Yes
Application cisco unified_communications_manager 7.1 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.