CVE-2012-4969
HIGHCVSS 8.1/10Actively ExploitedEPSS 81.72%
Last modified
CVE-2012-4969 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 81.72% chance of exploitation in the next 30 days.
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.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Internet Explorer | 6 |
| Microsoft | Internet Explorer | 7 |
| Microsoft | Internet Explorer | 8 |
| Microsoft | Internet Explorer | 9 |
References
- https://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/Third Party Advisory
- https://technet.microsoft.com/security/advisory/2757760Patch, Vendor Advisory
- https://www.kb.cert.org/vuls/id/480095Third Party Advisory, US Government Resource
- https://www.securitytracker.com/id?1027538Third Party Advisory, VDB Entry
- https://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wildThird Party Advisory
- https://www.us-cert.gov/cas/techalerts/TA12-255A.htmlThird Party Advisory, US Government Resource
- https://www.us-cert.gov/cas/techalerts/TA12-262A.htmlThird Party Advisory, US Government Resource
- https://www.us-cert.gov/cas/techalerts/TA12-265A.htmlThird Party Advisory, US Government Resource
- https://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/Third Party Advisory
- https://technet.microsoft.com/security/advisory/2757760Patch, Vendor Advisory
- https://www.kb.cert.org/vuls/id/480095Third Party Advisory, US Government Resource
- https://www.securitytracker.com/id?1027538Third Party Advisory, VDB Entry
- https://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wildThird Party Advisory
- https://www.us-cert.gov/cas/techalerts/TA12-255A.htmlThird Party Advisory, US Government Resource
- https://www.us-cert.gov/cas/techalerts/TA12-262A.htmlThird Party Advisory, US Government Resource
- https://www.us-cert.gov/cas/techalerts/TA12-265A.htmlThird Party Advisory, US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is 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.
How severe is CVE-2012-4969?
CVE-2012-4969 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 81.72% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2012-4969?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2012-4969?
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Scan your code nowSource: NVD / NIST