CVE-2012-4969
ENISA EUVD: EUVD-2012-4893 ↗
Exploited in the Wild
✓ Confirmed 0-Day
Triaged: March 20, 2026
3 articles
Published: 2012-09-18
EPSS Score
Source: FIRST.org · 2026-05-24
91.78%
probability
This CVE has a 91.78% probability
of being exploited in the next 30 days.
0%
Top 99.7th percentile of all CVEs
100%
CVSS v3.1
Source: VulnerabilityLookup (CIRCL)8.1
HIGH
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2 (legacy)
9.3
HIGH
Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
AV:N/AC:M/Au:N/C:C/I:C/A:C
Description
VulnerabilityLookup (CNA)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 Products
n/a
n/a
Attack Intelligence
CWE-118
· Incorrect Access of Indexable Resource ('Range Error')
CWE-119
· Buffer Overflow
CWE-416
· Use After Free
CWE-664
· Improper Control of a Resource Through its Lifetime
CWE-666
· Operation on Resource in Wrong Phase of Lifetime
CWE-672
· Operation on a Resource after Expiration or Release
CWE-825
· Expired Pointer Dereference
Exploits & PoC
http://www.us-cert.gov/cas/techalerts/TA12-265A.html
third-party-advisory
x_refsource_CERT
http://www.kb.cert.org/vuls/id/480095
third-party-advisory
x_refsource_CERT-VN
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729
vdb-entry
signature
x_refsource_OVAL
http://www.us-cert.gov/cas/techalerts/TA12-262A.html
third-party-advisory
x_refsource_CERT
http://technet.microsoft.com/security/advisory/2757760
x_refsource_CONFIRM
Signal Intelligence
Confidence
85%
EPSS
91.78%
CVSS v3.1
8.1
Mentions
3
CNA Information
CNA Assigner
mitre
Analyst Note
CVE-2012-4969 is a documented Internet Explorer zero-day with active exploitation in the wild confirmed by multiple sources. Microsoft explicitly confirmed zero-day status and deployed out-of-cycle patches, with exploitation documented against real targets (Council on Foreign Relations website). The 2012 publication year and contemporaneous exploitation reports support zero-day classification.
Triage Info
Decided atMar 20, 2026
Published DateSep 18, 2012