CVE-2009-0553

Status: ModifiedHigh (9.3)—💥 Exploit
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 allows remote attackers to execute arbitrary code via a web page that triggers presence of an object in memory that was (1) not properly initialized or (2) deleted, aka "Uninitialized Memory Corruption Vulnerability."
CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Base score: 9.3
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 41%
Percentile among all scored CVEs: 99
Score date: 10/9/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.
Published on Exploit-DB · Microsoft Internet Explorer - EMBED Memory Corruption (PoC) (MS09-014) (4/20/2009)
Affected technologies (1)

Microsoft — Internet Explorer
CWEs

CWE-399
References

Raw JSON (NVD)

Show
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