CVE-2012-1878

critical Microsoft
CVSS v3 Base Score
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS Score
53.0%
Exploitation probability in 30 days
Top 2% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
C
Integrity
C
Availability
C
Published: June 12, 2012 (5084 days ago)
Last Modified: April 29, 2026
Vendor: Microsoft
Source: NVD

Description

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "OnBeforeDeactivate Event Remote Code Execution Vulnerability."

CWE

CWE-94

Affected Products

microsoft internet explorer

References

🔗 www.us-cert.gov 🔗 docs.microsoft.com 🔗 oval.cisecurity.org 🔗 www.us-cert.gov 🔗 docs.microsoft.com