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CVE-2012-4969

8.1 · HIGHActively Exploited

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 ex…

Published Sep 18, 2012microsoftCWE-416EPSS 80.25%

Overview

CVE-2012-4969 is a high-severity vulnerability affecting microsoft internet_explorer. It was published on September 18, 2012 and has a CVSS 3.1 base score of 8.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update internet_explorer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refblog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/Refdev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rbReferomang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/Reftechnet.microsoft.com/security/advisory/2757760Refwww.kb.cert.org/vuls/id/480095Refwww.securitytracker.com/id?1027538Refwww.securityweek.com/new-internet-explorer-zero-day-being-exploited-wildRefwww.us-cert.gov/cas/techalerts/TA12-255A.htmlRefwww.us-cert.gov/cas/techalerts/TA12-262A.htmlRefwww.us-cert.gov/cas/techalerts/TA12-265A.html

How CyberStrike helps

Frequently asked questions

What is CVE-2012-4969?

CVE-2012-4969 is a high-severity vulnerability affecting microsoft internet_explorer. It was published on September 18, 2012 and has a CVSS 3.1 base score of 8.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2012-4969?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2012-4969?

Check the references section for vendor advisories and patches from microsoft. Update internet_explorer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2012-4969?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-4969 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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