{
    "id": "CVE-2020-0601",
    "published": "2020-01-14 23:15:30",
    "last_modified": "2026-06-17 02:46:08",
    "cvss_score": "8.1",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
    "cwe": "CWE-295",
    "description": "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'.",
    "epss_score": "0.89436",
    "epss_percentile": "0.99781",
    "kev": 1,
    "kev_due": "2022-05-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:25:19",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-05-03."
    },
    "products": [
        {
            "vendor": "golang",
            "product": "go"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1507"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1607"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1709"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1803"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1809"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1903"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1909"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_1803"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_1903"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_1909"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2016"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2019"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2020-0601",
        "date_added": "2021-11-03",
        "due_date": "2022-05-03",
        "vendor": "Microsoft",
        "product": "Windows",
        "name": "Microsoft Windows CryptoAPI Spoofing Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "47933",
            "title": "Microsoft Windows - CryptoAPI (Crypt32.dll) Elliptic Curve Cryptography (ECC) Spoof Code-Signing Certificate",
            "date": "2020-01-15",
            "url": "https://www.exploit-db.com/exploits/47933"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html",
        "http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601",
        "http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html",
        "http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0601"
    ]
}