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01 Record

CVE-2012-4775

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

HighPUBLISHEDCNA: microsoft
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
22.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.4% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2012-11-14 00:00Z13 YR AGO
Last updated
2025-01-16 20:53Z1 YR AGO
Reserved
2012-09-06
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
0b82edb57251bd93170317d32f2c8d3ca9a3f0520e615318c89560c6d93d3927

05 Affected products

VendorProductVersionsPlatforms
microsoftinternet_explorerNot specified—
microsoftwindows_7Not specified—
microsoftwindows_server_2008Not specified—
microsoftwindows_vistaNot specified—

06 References