CVE-2012-4787

9.0
CRITICALCVSS v3.1 Base Score
17.57%
LOW RiskEPSS (97th percentile)

Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly initialized or (2) is deleted, aka "Improper Ref Counting Use After Free Vulnerability."

Published: 12/12/2012
Modified: 6/16/2026
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Vulnerability Summary

CVSS v3 Score

9CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v2 Score

9.3

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

EPSS Score (Exploitation Probability)

17.57%LOW Exploitation Risk
97th percentile

This vulnerability has a 17.57% probability of being exploited in the next 30 days, ranking higher than 97% of all scored CVEs.

CWE Classification

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