Research > Zero-Day Tracker > 20110412

Microsoft HTML Help

Date Disclosed:
4/12/2011

Date Patched:
Patch Not Yet Available

Vendor:
Microsoft

Affected Software:
HTML Help 6.1 and earlier

Description:
Microsoft HTML Help contains a vulnerability when decompressing help files. Successful exploitation of the vulnerability could allow remote code execution.

Severity:
High

Code Execution:
Yes

Impact:
Client-side Remote Code Execution
This client-side vulnerability could allow an attacker to gain the ability to execute arbitrary code in the context of the current application. If the application is run as Administrator, the attacker may gain complete control of the target system.

Mitigation:
Do not open untrusted ".CHM" files.

Protection:
No known protection methods.

Links:
Exploit DB

Status:
4.12.2011 - Public Information Released

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