CVE-2019-1171
SymCrypt Information Disclosure Vulnerability
Published Aug 14, 2019
CVSS 3.1 · 5.6 Medium
EPSS 1.4%
KEV · Not listed
Description
An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.
To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.
The update addresses the vulnerability through a software change to the OAEP decoding operations.
To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.
The update addresses the vulnerability through a software change to the OAEP decoding operations.
Affected Products
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CVE record
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NVD configurations
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Red Hat packages
No data
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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 | Windows 10 Version 1703 | affected |
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| Microsoft | Windows 10 Version 1803 | affected |
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| Microsoft | Windows Server, version 1803 (Server Core Installation) | affected |
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| Microsoft | Windows 10 Version 1809 | affected |
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| Microsoft | Windows Server 2019 | affected |
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| Microsoft | Windows Server 2019 (Server Core installation) | affected |
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| Microsoft | Windows 10 Version 1709 for 32-bit Systems | affected |
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| Microsoft | Windows 10 Version 1709 | affected |
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| Microsoft | Windows 10 Version 1903 for 32-bit Systems | affected |
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| Microsoft | Windows 10 Version 1903 for x64-based Systems | affected |
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| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | affected |
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| Microsoft | Windows Server, version 1903 (Server Core installation) | 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-2019-9742 | An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability through a software change to the OAEP decoding operations. |
Metrics
No CVSS v4.0
Attack Vector Local
Attack Complexity High
Privileges Required Low
Scope Changed
Confidentiality Impact High
Integrity Impact None
Availability Impact None
User Interaction None
No CVSS v3.0
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
Exploit prediction score: 1.4% (1.371% probability within 30 days)
Exploitation none
Automatable no
Technical Impact total
References
History
Feb 21, 2026 12:15 PM
Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Feb 20, 2026 9:00 PM
Description updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability through a software change to the OAEP decoding operations. | An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability through a software change to the OAEP decoding operations. |
Subscriptions
Weaknesses
