⚠ Actively exploited
Added to CISA KEV on 2022-06-08. Federal agencies required to patch by 2022-06-22. Required action: Apply updates per vendor instructions..

CVE-2012-4969 — Use After Free in Microsoft Internet Explorer

CWE-416 — Use After Free14 documents11 sources
Severity
8.1HIGHNVD
EPSS
91.8%
top 0.31%
CISA KEV
KEV
Added 2022-06-08
Due 2022-06-22
Exploit
Exploited in wild
Active exploitation observed
Affected products
1
Microsoft Internet Explorer
Timeline
PublishedSep 18
KEV addedJun 8
KEV dueJun 22
CISA Required Action: Apply updates per vendor instructions.

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9

Affected Packages1 packages

▶NVDmicrosoft/internet_explorer4 versions+3

Patches

Patch: technet.microsoft.com ↗Patch: technet.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-xvh2-pw6x-f8hh: Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml↗2022-05-17
▶
VulnCheck
Microsoft Internet Explorer Use-After-Free Vulnerability↗2012
▶

💥Exploits & PoCs

2
Exploit-DB
Microsoft Internet Explorer - execCommand Use-After-Free (MS12-063) (Metasploit)↗2012-10-10
▶
Metasploit
MS12-063 Microsoft Internet Explorer execCommand Use-After-Free Vulnerability↗
▶

🔍Detection Rules

1
Suricata
ET WEB_CLIENT Internet Explorer execCommand function Use after free Vulnerability 0day Metasploit 2↗2015-01-06
▶

📋Vendor Advisories

1
CISA
Microsoft Internet Explorer Use-After-Free Vulnerability↗2022-06-08
▶

🕵️Threat Intelligence

6
Unit42
Scarlet Mimic: Years-Long Espionage Campaign Targets Minority Activists↗2016-01-24
▶
Unit42
Scarlet Mimic: Years-Long Espionage Campaign Targets Minority Activists↗2016-01-24
▶
Krebs
In a Zero-Day World, It’s Active Attacks that Matter – Krebs on Security↗2012-10-01
▶
Krebs
In a Zero-Day World, It’s Active Attacks that Matter↗2012-10-01
▶
Zscaler
Zscaler found Multiple Security Vulnerabilities | 09-18-2012↗
▶

📄Research Papers

1
CTF
17. Using the Metasploit-Framework / Using the Metasploit-Framework↗
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CVE-2012-4969 — Use After Free in Microsoft | cvebase