# CVE-2012-4969

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.

- Page: https://www.vulneraibility.com/cve/CVE-2012-4969
- CVSS: 8.1
- Known exploited: yes, in CISA KEV since 2022-06-08; CISA due date 2022-06-22
- EPSS: 80.25% (percentile 99.6)
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module (first 2012-10-10)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-04)
- Weakness: CWE-416
- Published: 2012-09-18

## Affected

- microsoft:internet_explorer

## References

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

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.