Microsoft Office
CVE-2019-0559 — Microsoft Outlook Information Disclosure Vulnerability
Executive Summary
An information disclosure vulnerability exists when Microsoft Outlook improperly handles certain types of messages. An attacker who successfully exploited this vulnerability could gather information about the victim. An attacker could exploit this vulnerability by sending a specially crafted email to the victim. The update addresses the vulnerability by correcting the way Microsoft Outlook handles these types of messages.
Overview
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
EPSS Score
0.06783
probability of exploitation in the next 30 days
0.93159 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
11 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Office 2019 for 32-bit editions | Click to Run (Security Update) |
Important | Information Disclosure | No |
| Microsoft Office 2019 for 64-bit editions | Click to Run (Security Update) |
Important | Information Disclosure | No |
| Microsoft Outlook 2010 Service Pack 2 (32-bit editions) | 4461623 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2010 Service Pack 2 (64-bit editions) | 4461623 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2013 RT Service Pack 1 | 4461595 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2013 Service Pack 1 (32-bit editions) | 4461595 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2013 Service Pack 1 (64-bit editions) | 4461595 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2016 (32-bit edition) | 4461601 (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Outlook 2016 (64-bit edition) | 4461601 (Security Update) |
Important | Information Disclosure | Maybe |
| Office 365 ProPlus for 32-bit Systems | Click to Run (Security Update) |
Important | Information Disclosure | No |
| Office 365 ProPlus for 64-bit Systems | Click to Run (Security Update) |
Important | Information Disclosure | No |
Patches
4 patches
| Article | Type | Restart |
|---|---|---|
Click to Run |
Security Update | No |
4461623 |
Security Update | Maybe |
4461595 |
Security Update | Maybe |
4461601 |
Security Update | Maybe |
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
Rick Roane
References
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