---
cve: "CVE-2020-0601"
severity: "HIGH"
cvss: 8.1
epss: "89.4%"
vendor: "Microsoft"
kev: true
exploited: true
published: "2020-01-14 23:15:30"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T20:59:51+02:00"
---

# CVE-2020-0601

> 8.1 HIGH · ⚠️ CISA KEV (1770 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

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'.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Exploit-Evidenz

- [EDB-47933 — Microsoft Windows - CryptoAPI (Crypt32.dll) Elliptic Curve Cryptography (ECC) Spoof Code-Signing Certificate](https://www.exploit-db.com/exploits/47933)

## Patch verfügbar (OSV)

- deac3221fc4cd365fb40d269dd56551e9d354356 (Commit)
- 7d2473dc81c659fba3f3b83bc6e93ca5fe37a898 (Commit)

## Referenzen

- <https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601>
- <http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html>
- <http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0601>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-0601) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_