Microsoft Office
CVE-2018-8150 — Microsoft Outlook Security Feature Bypass Vulnerability
Executive Summary
A security feature bypass vulnerability exists when the Microsoft Outlook attachment block filter does not properly handle attachments. An attacker who successfully exploited the vulnerability could execute arbitrary commands. The security feature bypass by itself does not allow arbitrary code execution. In a file-sharing attack scenario, an attacker could provide a specially-crafted document file designed to exploit the vulnerability, and then convince a user to open the document file. The update addresses the vulnerability by correcting how the Microsoft Outlook attachment block filter handles attachments.
Overview
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
EPSS Score
0.05464
probability of exploitation in the next 30 days
0.92041 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
2 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions | Click to Run (Security Update) |
Important | Security Feature Bypass | No |
| Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions | Click to Run (Security Update) |
Important | Security Feature Bypass | No |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
Click to Run |
Security Update | No |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Atanas Kirilov
References
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