What’s Vulnerable › Vulnerabilities

CVE-2017-11774: Microsoft Office Outlook Security Feature Bypass Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 59.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-10-13 · updated 2026-06-17
• Weakness: CWE-119

Description

Microsoft Outlook 2010 SP2, Outlook 2013 SP1 and RT SP1, and Outlook 2016 allow an attacker to execute arbitrary commands, due to how Microsoft Office handles objects in memory, aka "Microsoft Outlook Security Feature Bypass Vulnerability."

Affected products

• Microsoft Outlook: 2010-sp2, 2013-sp1, 2016
• Microsoft Outlook: Microsoft Outlook 2010 SP2, Outlook 2013 SP1 and RT SP1, Outlook 2016

References

• http://www.securityfocus.com/bid/101098
• http://www.securitytracker.com/id/1039542
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11774
• https://sensepost.com/blog/2017/outlook-home-page-another-ruler-vector/
• http://www.securityfocus.com/bid/101098
• http://www.securitytracker.com/id/1039542
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11774
• https://sensepost.com/blog/2017/outlook-home-page-another-ruler-vector/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11774

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