CVE-2012-4787

9.0 CRITICAL
Published: December 12, 2012 Modified: April 29, 2026
View on NVD

Description

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."

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA12-346A.html
Source: secure@microsoft.com
US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-077
Source: secure@microsoft.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16211
Source: secure@microsoft.com
http://www.us-cert.gov/cas/techalerts/TA12-346A.html
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-077
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16211
Source: af854a3a-2127-422b-91ae-364da2661108

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.0 / 10.0
EPSS (Exploit Probability)
36.2%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-399 CWE-416

Affected Vendors

microsoft

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