CVE Catalog

CVE-2006-1540

High
Published: Translated: NVD NIST

Summary

A vulnerability in MSO.DLL of Microsoft Office 2000, XP, and 2003 allows user-assisted attackers to cause denial of service or execute arbitrary code via crafted documents. The attack exploits an invalid array index or integer overflow, leading to access violations in various Office components.

Risk Assessment

The organization faces risk of remote code execution when a user opens a malicious document, potentially leading to system compromise or data loss.

Recommendation

Immediately update Microsoft Office to the latest version and apply security patches from the vendor. Also train users to exercise caution when opening unknown documents.

Related vulnerabilities

Original NVD description (English source)

MSO.DLL in Microsoft Office 2000, Office XP (2002), and Office 2003 allows user-assisted attackers to cause a denial of service and execute arbitrary code via multiple attack vectors, as originally demonstrated using a crafted document record with a malformed string, as demonstrated by replacing a certain "01 00 00 00" byte sequence with an "FF FF FF FF" byte sequence, possibly causing an invalid array index, in (1) an Excel .xls document, which triggers an access violation in ole32.dll; (2) an Excel .xlw document, which triggers an access violation in excel.exe; (3) a Word document, which triggers an access violation in mso.dll in winword.exe; and (4) a PowerPoint document, which triggers an access violation in powerpnt.txt. NOTE: after the initial disclosure, this issue was demonstrated by triggering an integer overflow using an inconsistent size for a Unicode "Sheet Name" string.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS