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

> CVE-2017-11774: Microsoft Office Outlook Security Feature Bypass Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2017-11774
Last updated: 2025-10-21T23:55:31Z

- Published: 2017-10-13 13:00 UTC · Updated: 2025-10-21 23:55 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 59.6%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown

## 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."

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft Corporation: Microsoft Outlook

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2017-11774)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2017-11774)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11774](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://sensepost.com/blog/2017/outlook-home-page-another-ruler-vector/)
- [http://www.securityfocus.com/bid/101098](http://www.securityfocus.com/bid/101098)
- [http://www.securitytracker.com/id/1039542](http://www.securitytracker.com/id/1039542)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2017-11774 · Markdown: https://rewindex.com/cve/CVE-2017-11774.md · JSON: https://rewindex.com/api/v1/cves/CVE-2017-11774 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:59:20.241Z