PT-2012-1236 · Microsoft · Internet Explorer

Published 2012-09-18 · Updated 2025-04-03 · CVE-2012-4969

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Internet Explorer versions 6 through 9

Description A use-after-free issue in the CMshtmlEd::Exec function in mshtml.dll allows remote attackers to execute arbitrary code via a crafted web site. This issue has been exploited in the wild. The vulnerability may corrupt memory, enabling an attacker to execute arbitrary code in the context of the current user.

Recommendations For versions 6 through 9, consider disabling the CMshtmlEd::Exec function as a temporary workaround until a patch is available. Restrict access to potentially vulnerable web sites to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-416

Related Identifiers

BDU:2022-03966

CVE-2012-4969

ZDI-12-199

Affected Products

Internet Explorer

References · 23

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_execcommand_uaf.rb · Exploit
• 🔥 https://exploit-db.com/exploits/21840 · Exploit
• https://zerodayinitiative.com/advisories/ZDI-12-199 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4969 · Security Note
• https://bdu.fstec.ru/vul/2022-03966 · Security Note
• http://technet.microsoft.com/security/advisory/2757760 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-4969 · Security Note
• https://cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv · Note
• https://cisa.gov/known-exploited-vulnerabilities-catalog · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729 · Note
• http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en · Note
• http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet · Note
• http://us-cert.gov/cas/techalerts/TA12-255A.html · Note
• https://t.me/cvenotify/117651 · Telegram Post
• https://t.me/cvenotify/110026 · Telegram Post