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Fencer Intel
critical 9.3

CVE-2012-1538 in the critical feed json

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka…

published 2012-11-14 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1556

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
21.3%
EPSS 21.3% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CFormElement Use After Free Vulnerability."

Exploit prediction

21.34% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.