Vulnerability Intelligence Report
Microsoft Windows CryptoAPI Spoofing Vulnerability
CVE-2020-0601
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source, aka 'Windows CryptoAPI Spoofing Vulnerability'.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.1
HIGH
Exploitability:2.9
Impact Score:5.2
EPSS Probability:89.44%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-295 ↗CWE-295 Improper Certificate Validation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows | 10 Version 1803 for 32-bit Systems (affected), 10 Version 1803 for x64-based Systems (affected), 10 Version 1803 for ARM64-based Systems (affected), 10 Version 1809 for 32-bit Systems (affected), 10 Version 1809 for x64-based Systems (affected), 10 Version 1809 for ARM64-based Systems (affected), 10 Version 1709 for 32-bit Systems (affected), 10 Version 1709 for x64-based Systems (affected), 10 Version 1709 for ARM64-based Systems (affected), 10 for 32-bit Systems (affected), 10 for x64-based Systems (affected), 10 Version 1607 for 32-bit Systems (affected), 10 Version 1607 for x64-based Systems (affected) |
| Microsoft | Windows Server | version 1803 (Core Installation) (affected), 2019 (affected), 2019 (Core installation) (affected), 2016 (affected), 2016 (Core installation) (affected) |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | unspecified (affected) |
| Microsoft | Windows Server, version 1903 (Server Core installation) | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for 32-bit Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for x64-based Systems | unspecified (affected) |
| Microsoft | Windows Server, version 1909 (Server Core installation) | unspecified (affected) |
| Microsoft | Windows 10 Version 1909 for ARM64-based Systems | unspecified (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2019-11-04T00:00:00 |
| Published | 2020-01-14T23:11:20 |
| Last Updated | 2025-10-21T23:35:53 |
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