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CVE-2013-3159

4.3 · MEDIUM

Microsoft Excel 2003 SP3, 2007 SP3, and 2010 SP1 and SP2; Excel Viewer; and Microsoft Office Compatibility Pack SP3 allow remote attackers to read arbitrary files via an XML document containing an…

Published Sep 11, 2013microsoftCWE-20EPSS 15.48%

Overview

CVE-2013-3159 is a medium-severity vulnerability affecting microsoft excel. It was published on September 11, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Microsoft Excel 2003 SP3, 2007 SP3, and 2010 SP1 and SP2; Excel Viewer; and Microsoft Office Compatibility Pack SP3 allow remote attackers to read arbitrary files via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka "XML External Entities Resolution Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update excel 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

Refwww.us-cert.gov/ncas/alerts/TA13-253ARefdocs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-073Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18686Refwww.us-cert.gov/ncas/alerts/TA13-253ARefdocs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-073Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18686

How CyberStrike helps

Frequently asked questions

What is CVE-2013-3159?

CVE-2013-3159 is a medium-severity vulnerability affecting microsoft excel. It was published on September 11, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2013-3159?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-3159?

Check the references section for vendor advisories and patches from microsoft. Update excel 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-2013-3159?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-3159 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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