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CVE-2006-1540

9.3 · HIGH

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…

Published Mar 30, 2006microsoftCWE-94EPSS 28.63%

Overview

CVE-2006-1540 is a high-severity vulnerability affecting microsoft office. It was published on March 30, 2006 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update office to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsecunia.com/advisories/21012Refsecuritytracker.com/id?1015855Refwww.kb.cert.org/vuls/id/609868Refwww.osvdb.org/27150Refwww.securityfocus.com/archive/1/439697/100/0/threadedRefwww.securityfocus.com/bid/17252Refwww.securityfocus.com/bid/18889Refwww.us-cert.gov/cas/techalerts/TA06-192A.htmlRefwww.vupen.com/english/advisories/2006/2756Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-038

How CyberStrike helps

Frequently asked questions

What is CVE-2006-1540?

CVE-2006-1540 is a high-severity vulnerability affecting microsoft office. It was published on March 30, 2006 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2006-1540?

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-1540?

Check the references section for vendor advisories and patches from microsoft. Update office to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2006-1540?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-1540 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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