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CVE-2017-11877

5.5 · MEDIUM

Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2016, Microsoft Office Compati…

Published Nov 15, 2017EPSS 4.55%

Overview

CVE-2017-11877 is a medium-severity vulnerability. It was published on November 15, 2017 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Microsoft Excel 2007 Service Pack 3, Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2016, Microsoft Office Compatibility Pack Service Pack 3, Microsoft Excel Viewer 2007 Service Pack 3, and Microsoft Excel 2016 for Mac allow a security feature bypass by not enforcing macro settings on an Excel document, aka "Microsoft Excel Security Feature Bypass Vulnerability".

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.securityfocus.com/bid/101747Refwww.securitytracker.com/id/1039783Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11877Refwww.securityfocus.com/bid/101747Refwww.securitytracker.com/id/1039783Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11877

How CyberStrike helps

Frequently asked questions

What is CVE-2017-11877?

CVE-2017-11877 is a medium-severity vulnerability. It was published on November 15, 2017 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2017-11877?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-11877?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2017-11877?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-11877 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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