{"uuid": "70b0d9ac-1845-43ed-8660-8d4dc1ef2833", "vulnerability": {"vulnId": "CVE-2020-0601", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "70b0d9ac-1845-43ed-8660-8d4dc1ef2833"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2021-11-03T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2021-11-03T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2021-11-03T00:00:00Z"}, "scope": {"notes": "KEV entry: Microsoft Windows CryptoAPI Spoofing Vulnerability | Affected: Microsoft / Windows | Description: Microsoft Windows CryptoAPI (Crypt32.dll) contains a spoofing vulnerability in the way it 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. A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software. The vulnerability is also known under the moniker of CurveBall. | Required action: Apply updates per vendor instructions. | Due date: 2022-05-03 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-295"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "Windows", "due_date": "2022-05-03", "date_added": "2021-11-03", "vendorProject": "Microsoft", "vulnerabilityName": "Microsoft Windows CryptoAPI Spoofing Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2020-0601", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0601"}]}