CVE-2009-1530

CVE-2009-1530 is a critical-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Description

Use-after-free vulnerability in Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code by repeatedly adding HTML document nodes and calling event handlers, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka "HTML Objects Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2009-1530?
Use-after-free vulnerability in Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code by repeatedly adding HTML document nodes and calling event handlers, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka "HTML Objects Memory Corruption Vulnerability."
How severe is CVE-2009-1530?
CVE-2009-1530 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1530 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1530?
CVE-2009-1530 primarily affects Microsoft Internet Explorer. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1530?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-1530 published?
CVE-2009-1530 was published on 2009-06-10 and last updated on 2026-06-16.

References

Affected products (6)

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