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Fortinet Discovers Microsoft Excel Vulnerability

Summary:

Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Microsoft Office Excel, which allows a remote attacker to compromise a system through a malicious document.

Impact:

Remote code execution.

Risk:

High

Affected Software:

For a list of affected software, please refer to the Microsoft Security Bulletin reference below.

Additional Information:

One memory corruption vulnerability was discovered in Microsoft Office Excel:
  • Memory corruption in "excel.exe" (CVE-2010-0823)

The vulnerability is triggered when opening and rendering an Excel file. A remote attacker could craft a malicious document which exploits this vulnerability, allowing them to compromise a system.

Solutions:

FortiGuard Labs released the following signature to protect against this vulnerability:
References:

Acknowledgment:
  • Bing Liu of Fortinet's FortiGuard Labs