CVE-2020-0601

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.894 · 100 %ileexploit · PoCEURUUS
grimoire priorityP0 · Act now
Exploitable?
Yes · in the wild
CISA KEV · 36 exploits · PoC
Likely / severe?
89.4% (100th) EPSS
CVSS 5.8 · medium
Is it mine?
58 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · osv

added 2021-11-03remediate by 2022-05-03

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-23

Microsoft Windows CryptoAPI Spoofing Vulnerability

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'.

01

cvss

Technical severity, 0–10. One row per scoring source.

8.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.1

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 5.2
v3.18.1highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Nsecondary · ENISA EU
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Nsecondaryexploitability 2.8 · impact 5.2
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:Hsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295USprimaryCWE-295US
04

exploits (36)

Public proof-of-concept and weaponised exploit code.

05

affected products (58)

Products and version ranges known to be affected.

showing 20 of 58
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • BIT-golang-2020-06012024-03-06vendor · osvUS

    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'.

  • GO-2022-0535Certificate validation bypass on Windows in crypto/x5092022-08-01vendor · osvUS

    A Windows vulnerability allows attackers to spoof valid certificate chains when the system root store is in use. A workaround is present in Go 1.12.6+ and Go 1.13.7+, but affected users should additionally install the Windows security update to protect their system. See https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-0601 for details on the Windows vulnerability.

07

also known as (6)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduosvNVDCVE.orgMITRE
published 2020-01-14modified 2026-10-09
10

references (14)

External citations — patches, advisories, analysis.

scry

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