Vulnerability Monitor

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CVE-2010-0220


The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.


Security Impact Summary

CVE-2010-0220 is a security vulnerability that . Impacting 1 product from mozilla organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


Published

2010-01-07T19:30:00.403

Last Modified

2026-06-16T23:15:44.137

Status

Modified

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

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

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-399

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application mozilla firefox ≤ 3.5.6 Yes
Application mozilla firefox 0.1 Yes
Application mozilla firefox 0.2 Yes
Application mozilla firefox 0.3 Yes
Application mozilla firefox 0.4 Yes
Application mozilla firefox 0.5 Yes
Application mozilla firefox 0.6 Yes
Application mozilla firefox 0.6.1 Yes
Application mozilla firefox 0.7 Yes
Application mozilla firefox 0.7.1 Yes
Application mozilla firefox 0.8 Yes
Application mozilla firefox 0.9 Yes
Application mozilla firefox 0.9 Yes
Application mozilla firefox 0.9.1 Yes
Application mozilla firefox 0.9.2 Yes
Application mozilla firefox 0.9.3 Yes
Application mozilla firefox 0.10 Yes
Application mozilla firefox 0.10.1 Yes
Application mozilla firefox 1.0 Yes
Application mozilla firefox 1.0 Yes
Application mozilla firefox 1.0.1 Yes
Application mozilla firefox 1.0.2 Yes
Application mozilla firefox 1.0.3 Yes
Application mozilla firefox 1.0.4 Yes
Application mozilla firefox 1.0.5 Yes
Application mozilla firefox 1.0.6 Yes
Application mozilla firefox 1.0.7 Yes
Application mozilla firefox 1.0.8 Yes
Application mozilla firefox 1.4.1 Yes
Application mozilla firefox 1.5 Yes
Application mozilla firefox 1.5 Yes
Application mozilla firefox 1.5 Yes
Application mozilla firefox 1.5.0.1 Yes
Application mozilla firefox 1.5.0.2 Yes
Application mozilla firefox 1.5.0.3 Yes
Application mozilla firefox 1.5.0.4 Yes
Application mozilla firefox 1.5.0.5 Yes
Application mozilla firefox 1.5.0.6 Yes
Application mozilla firefox 1.5.0.7 Yes
Application mozilla firefox 1.5.0.8 Yes
Application mozilla firefox 1.5.0.9 Yes
Application mozilla firefox 1.5.0.10 Yes
Application mozilla firefox 1.5.0.11 Yes
Application mozilla firefox 1.5.0.12 Yes
Application mozilla firefox 1.5.1 Yes
Application mozilla firefox 1.5.2 Yes
Application mozilla firefox 1.5.3 Yes
Application mozilla firefox 1.5.4 Yes
Application mozilla firefox 1.5.5 Yes
Application mozilla firefox 1.5.6 Yes
Application mozilla firefox 1.5.7 Yes
Application mozilla firefox 1.5.8 Yes
Application mozilla firefox 1.8 Yes
Application mozilla firefox 2.0 Yes
Application mozilla firefox 2.0.0.1 Yes
Application mozilla firefox 2.0.0.2 Yes
Application mozilla firefox 2.0.0.3 Yes
Application mozilla firefox 2.0.0.4 Yes
Application mozilla firefox 2.0.0.5 Yes
Application mozilla firefox 2.0.0.6 Yes
Application mozilla firefox 2.0.0.7 Yes
Application mozilla firefox 2.0.0.8 Yes
Application mozilla firefox 2.0.0.9 Yes
Application mozilla firefox 2.0.0.10 Yes
Application mozilla firefox 2.0.0.11 Yes
Application mozilla firefox 3.0 Yes
Application mozilla firefox 3.0.5 Yes
Application mozilla firefox 3.5 Yes
Application mozilla firefox 3.5.2 Yes
Application mozilla firefox 3.5.3 Yes
Application mozilla firefox 3.5.4 Yes
Application mozilla firefox 3.5.5 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 mozilla'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.