CVEvulnerability

CVE-2012-4969

8.1 HIGH Known exploited Published 2012-09-18 Modified 2026-06-16 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Internet Explorer Use-After-Free Vulnerability — Microsoft Internet Explorer

Microsoft Internet Explorer contains a use-after-free vulnerability that allows remote attackers to execute code via a crafted web site.

Added to KEV: 2022-06-08
Remediation due: 2022-06-22
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2012-4969

Status: Analyzed
Published: 2012-09-18
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses: CWE-416

Description

Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.

Affected configurations

• microsoft internet explorer 6 • microsoft internet explorer 7 • microsoft internet explorer 8 • microsoft internet explorer 9

Related

Weakness · CWE (1)

CWE-416 Use After Free weakness

References

http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/ Broken Link
http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb Broken Link
http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/ Third Party Advisory
http://technet.microsoft.com/security/advisory/2757760 Patch, Vendor Advisory
http://www.kb.cert.org/vuls/id/480095 Third Party Advisory, US Government Resource
http://www.securitytracker.com/id?1027538 Third Party Advisory, VDB Entry
http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA12-255A.html Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-262A.html Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-265A.html Third Party Advisory, US Government Resource
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729 Third Party Advisory
http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/ Broken Link
http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb Broken Link
http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/ Third Party Advisory
http://technet.microsoft.com/security/advisory/2757760 Patch, Vendor Advisory
http://www.kb.cert.org/vuls/id/480095 Third Party Advisory, US Government Resource
http://www.securitytracker.com/id?1027538 Third Party Advisory, VDB Entry
http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA12-255A.html Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-262A.html Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-265A.html Third Party Advisory, US Government Resource
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729 Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969 US Government Resource