CVE-2012-1539 Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."

HighCVSS 9.3 EPSS 25.4%

Published: 2012-11-14 18:12 (approximate time: when CVE Radar first recorded it)
Updated: 2026-06-17 02:39
Exploit status: No public exploit known

Description

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

Affected products

Product	Affected versions	Fixed in
Microsoft internet explorer	= 9	No fix listed
Microsoft ie	= 9	No fix listed

References

51202 third-party-advisory
56421 vdb-entry
1027749 vdb-entry
TA12-318A third-party-advisory us-government-resource
MS12-071 vendor-advisory
oval:org.mitre.oval:def:15886 signature vdb-entry

CVSS v2.0

9.3 High

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

Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality: Complete
Integrity: Complete
Availability: Complete

All scores (2)

v3.1 8.1 · cisa-adp
v2.0 9.3 · nvd@nist.gov

Weakness & likelihood

EPSS (exploitation probability, 30 days): 25.37% (percentile 98.0)
CWE: CWE-399 CWE-416 Use After Free

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.