CVE-2020-0601 (GCVE-0-2020-0601)

Vulnerability from cvelistv5 – Published: 2020-01-14 23:11 – Updated: 2025-10-21 23:35
VLAI? CISA
Summary
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'.
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
  • Spoofing
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows Affected: 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
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CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2021-11-03

Due date: 2020-01-29

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: Reference CISA's ED 20-02 (https://www.cisa.gov/news-events/directives/ed-20-02-mitigate-windows-vulnerabilities-january-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-02. https://nvd.nist.gov/vuln/detail/CVE-2020-0601

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      "cveMetadata": "{\"cveId\": \"CVE-2020-0601\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:35:53.978Z\", \"dateReserved\": \"2019-11-04T00:00:00.000Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2020-01-14T23:11:20.000Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.