CVE-2012-4969
HIGH severity · CVSS 8.1 · Use-after-free · actively exploited (CISA KEV)
8.1CVSS HIGH exploited
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2022-06-08. US federal agencies must patch by 2022-06-22.
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)82%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: http://technet.microsoft.com/security/advisory/2757760 ↗
Additional information
- NVD record
- http://technet.microsoft.com/security/advisory/2757760Patch
- http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/
- http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb
- http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/Advisory
- http://www.kb.cert.org/vuls/id/480095Advisory
- http://www.securitytracker.com/id?1027538Advisory
- http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wildAdvisory
- http://www.us-cert.gov/cas/techalerts/TA12-255A.htmlAdvisory