Vulnerability Monitor

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CVE-2006-6696

Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.

Security Impact Summary

CVE-2006-6696 is a security vulnerability that . Impacting 4 products from microsoft, from microsoft, from microsoft and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2006, 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

2006-12-22T02:28:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.9 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.4

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2000 * Yes
Operating System microsoft windows_2003_server datacenter_edition Yes
Operating System microsoft windows_2003_server datacenter_edition Yes
Operating System microsoft windows_2003_server datacenter_edition Yes
Operating System microsoft windows_2003_server enterprise_edition Yes
Operating System microsoft windows_2003_server enterprise_edition Yes
Operating System microsoft windows_2003_server sp1 Yes
Operating System microsoft windows_2003_server standard Yes
Operating System microsoft windows_2003_server standard Yes
Operating System microsoft windows_2003_server standard Yes
Operating System microsoft windows_2003_server web Yes
Operating System microsoft windows_2003_server web Yes
Operating System microsoft windows_2003_server web Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_vista * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * Yes
Operating System microsoft windows_xp * 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 microsoft'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.