Vulnerability Monitor

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CVE-2009-2416

Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 19 products from xmlsoft, from xmlsoft, from fedoraproject and 16 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

2009-08-11T18:30:00.983

Last Modified

2026-04-23T00:35:47.467

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

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

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-416
  • Type: Secondary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application xmlsoft libxml 1.8.17 Yes
Application xmlsoft libxml2 2.5.10 Yes
Application xmlsoft libxml2 2.6.16 Yes
Application xmlsoft libxml2 2.6.26 Yes
Application xmlsoft libxml2 2.6.27 Yes
Application xmlsoft libxml2 2.6.32 Yes
Operating System fedoraproject fedora 10 Yes
Operating System fedoraproject fedora 11 Yes
Operating System debian debian_linux 4.0 Yes
Operating System redhat enterprise_linux 3.0 Yes
Operating System redhat enterprise_linux 4.0 Yes
Operating System redhat enterprise_linux 5.0 Yes
Operating System canonical ubuntu_linux 6.06 Yes
Operating System canonical ubuntu_linux 8.04 Yes
Operating System canonical ubuntu_linux 8.10 Yes
Operating System canonical ubuntu_linux 9.04 Yes
Application google chrome < 2.0.172.43 Yes
Application apple safari < 4.0.4 Yes
Operating System apple iphone_os < 4.0 Yes
Operating System apple mac_os_x < 10.4.11 Yes
Operating System apple mac_os_x < 10.5.8 Yes
Operating System apple mac_os_x < 10.6.2 Yes
Operating System apple mac_os_x_server < 10.4.11 Yes
Operating System apple mac_os_x_server < 10.5.8 Yes
Operating System apple mac_os_x_server < 10.6.2 Yes
Operating System opensuse opensuse ≤ 11.1 Yes
Operating System suse linux_enterprise 10.0 Yes
Operating System suse linux_enterprise 11.0 Yes
Operating System suse linux_enterprise_server 9 Yes
Application vmware vcenter_server 4.0 Yes
Application vmware vma 4.0 Yes
Operating System vmware esx 3.0.3 Yes
Operating System vmware esx 3.5 Yes
Operating System vmware esx 4.0 Yes
Operating System vmware esxi 3.5 Yes
Operating System vmware esxi 4.0 Yes
Application sun openoffice.org < 2.4.3 Yes
Application sun openoffice.org < 3.1.1 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 xmlsoft'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.