CVE-2019-1204
Microsoft Outlook Elevation of Privilege Vulnerability
Published Aug 14, 2019
CVSS 3.0 · 4.3 Medium
EPSS 4.4%
KEV · Not listed
Description
An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB).
To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email.
This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content.
To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email.
This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content.
Affected Products
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CVE record
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NVD configurations
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Red Hat packages
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OpenCVE enrichment
No data
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Microsoft | Microsoft Office 2019 | affected |
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| Microsoft | Office 365 ProPlus | affected |
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| Microsoft | Microsoft Outlook 2016 | affected |
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| Microsoft | Microsoft Outlook 2013 Service Pack 1 | affected |
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| Microsoft | Microsoft Outlook 2010 Service Pack 2 | affected |
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Configuration 1 [-]
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No data.
No data available yet.
Remediation
Tracking
Advisories
| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2019-9772 | An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB). To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email. This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content. |
Metrics
No CVSS v4.0
No CVSS v3.1
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
User Interaction Required
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
Exploit prediction score: 4.4% (4.423% probability within 30 days)
Key SSVC decision points have not yet been added.
References
History
Feb 20, 2026 9:00 PM
Description updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB). To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email. This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content. | An elevation of privilege vulnerability exists when Microsoft Outlook initiates processing of incoming messages without sufficient validation of the formatting of the messages. An attacker who successfully exploited the vulnerability could attempt to force Outlook to load a local or remote message store (over SMB). To exploit the vulnerability, the attacker could send a specially crafted email to a victim. Outlook would then attempt to open a pre-configured message store contained in the email upon receipt of the email. This update addresses the vulnerability by ensuring Office fully validates incoming email formatting before processing message content. |
Jul 12, 2025 1:45 PM
Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
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| Metrics |
epss
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Weaknesses
