Vulnerability Monitor

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CVE-2009-0551


Microsoft Internet Explorer 6 SP1, 6 and 7 on Windows XP SP2 and SP3, 6 and 7 on Windows Server 2003 SP1 and SP2, 7 on Windows Vista Gold and SP1, and 7 on Windows Server 2008 does not properly handle transition errors in a request for one HTTP document followed by a request for a second HTTP document, which allows remote attackers to execute arbitrary code via vectors involving (1) multiple crafted pages on a web site or (2) a web page with crafted inline content such as banner advertisements, aka "Page Transition Memory Corruption Vulnerability."


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 6 products from microsoft, from microsoft, from microsoft and 3 others, 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

2009-04-15T08:00:00.627

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

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

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

8.6

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-399

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application microsoft internet_explorer 6 Yes
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Application microsoft internet_explorer 7 Yes
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2003 * No
Operating System microsoft windows_server_2008 * No
Operating System microsoft windows_server_2008 * No
Operating System microsoft windows_server_2008 * No
Operating System microsoft windows_server_2008 * No
Operating System microsoft windows_vista * No
Operating System microsoft windows_vista * No
Operating System microsoft windows_vista * No
Operating System microsoft windows_vista gold No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Operating System microsoft windows_xp * No
Application microsoft internet_explorer 6 Yes
Operating System microsoft windows_2000 * No

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.