CVE-2020-0601CISA KEVEPSS p99.8%

CVE-2020-0601Microsoft Windows CryptoAPI Spoofing Vulnerability

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.

Scoring

EPSS89.44% probability of exploitation · percentile 99.8% · 2026-06-17T12:03:21Z

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows CryptoAPI Spoofing Vulnerabilitykev-cve-2020-06010%live

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.