CVEs / CVE-2012-4969
CVE-2012-4969: Microsoft Internet Explorer Use-After-Free Vulnerability
- Known exploited in the CISA KEV catalog since 8 Jun 2022
- high 8.1 CVSS 3.1 (NVD)
- EPSS 80.2% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Internet Explorer contains a use-after-free vulnerability that allows remote attackers to execute code via a crafted web site.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 8 Jun 2022 |
|---|---|
| Due date for US federal agencies | 22 Jun 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 8.1 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2012-4969 on NVD
- CVE-2012-4969 in the CISA KEV catalog
- 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
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.