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CVE-2012-4969

97
FAUCET Score

CVE-2012-4969 is a critical use-after-free vulnerability in Microsoft Internet Explorer versions 6 through 9, specifically within the CMshtmlEd::Exec function in mshtml.dll, affecting various Windows operating systems. With a CVSS score of 8.1 (HIGH), it allows remote attackers to execute arbitrary code via a crafted website, requiring no user interaction beyond visiting the malicious page. This vulnerability has been actively exploited in the wild since September 2012, with publicly available Metasploit modules and significant community discussion and media coverage confirming its widespread impact and exploitability.

Impacted Technologies

VendorProductVersion(s)CPE
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
8CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
9CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
81.72%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Jun 8, 2022
Metasploit: MS12-063 Microsoft Internet Explorer execCommand Use-After-Free Vulnerability · Sep 14, 2012
ExploitDB: EDB-21840 · Oct 10, 2012
This CVE's current EPSS score of 0.8172 is in the 100th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
blog.vulnhunt.com / index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en
Broken Link
dev.metasploit.com / redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb
Broken Link
eromang.zataz.com / 2012/09/16/zero-day-season-is-really-not-over-yet
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729
Third Party Advisory
technet.microsoft.com / security/advisory/2757760
PatchVendor Advisory
kb.cert.org / vuls/id/480095
Third Party AdvisoryUS Government Resource
securitytracker.com / id
Third Party AdvisoryVDB Entry
securityweek.com / new-internet-explorer-zero-day-being-exploited-wild
Third Party Advisory
us-cert.gov / cas/techalerts/TA12-255A.html
Third Party AdvisoryUS Government Resource
us-cert.gov / cas/techalerts/TA12-262A.html
Third Party AdvisoryUS Government Resource
us-cert.gov / cas/techalerts/TA12-265A.html
Third Party AdvisoryUS Government Resource