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CVE-2017-11826

7.8 · HIGHActively Exploited

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automatio…

Published Oct 13, 2017CWE-119EPSS 81.33%

Overview

CVE-2017-11826 is a high-severity vulnerability. It was published on October 13, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

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/101219Refwww.securitytracker.com/id/1039541Ref0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826Refsecuringtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/Refwww.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/Refwww.securityfocus.com/bid/101219Refwww.securitytracker.com/id/1039541Ref0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826

How CyberStrike helps

Frequently asked questions

What is CVE-2017-11826?

CVE-2017-11826 is a high-severity vulnerability. It was published on October 13, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2017-11826?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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-2017-11826?

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-2017-11826?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-11826 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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