CVE-2020-0601

Exp

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'.

Published: 2020-01-14 Last update: 2025-12-18 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-0601 is rated Critical Active Threat (93.9/100): CVSS High severity, with high exploitation likelihood (EPSS 94.09%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2021-11-03) affecting Microsoft / Windows. a weakness (CWE-295) Unauthenticated remote administrative access may be possible. EPSS rose +1.58% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2020-0601

Name: Microsoft Windows CryptoAPI Spoofing Vulnerability · CISA KEV detail

Exploit added: 2021-11-03

Action due: 2022-05-03

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2020-0601

EDB-ID Source Kind Published Link
47933 exploit_db edb 2020-01-15 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-0601

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 92.52% 94.09% +1.58%
2 2025-11-18 94.09% 92.52% -1.58%
3 2025-10-30 94.09%

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-0601

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 5.2 [email protected]
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 5.2 134c704f-9b21-4f2e-91b3-4a467353bcc0
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 4.9 [email protected]

Weakness enumeration for CVE-2020-0601

OS Trackers for CVE-2020-0601

vendor priority summary link
alpine CVE-2020-0601: 1 source package rows (containerd); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2020-0601

Affected software / configurations for CVE-2020-0601

Vendor Product Version Raw CPE
microsoft windows_10_1507 cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:x64:*
microsoft windows_10_1507 cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:x86:*
microsoft windows_10_1607 cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*
microsoft windows_10_1607 cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*
microsoft windows_10_1709 cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:arm64:*
microsoft windows_10_1709 cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x64:*
microsoft windows_10_1709 cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x86:*
microsoft windows_10_1803 cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:arm64:*
microsoft windows_10_1803 cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x64:*
microsoft windows_10_1803 cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x86:*
microsoft windows_10_1809 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*
microsoft windows_10_1809 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft windows_10_1809 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft windows_10_1903 cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*
microsoft windows_10_1903 cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*
microsoft windows_10_1903 cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*
microsoft windows_10_1909 cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:arm64:*
microsoft windows_10_1909 cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:x64:*
microsoft windows_10_1909 cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:x86:*
microsoft windows_server_1803 cpe:2.3:o:microsoft:windows_server_1803:-:*:*:*:*:*:*:*
microsoft windows_server_1903 cpe:2.3:o:microsoft:windows_server_1903:-:*:*:*:*:*:*:*
microsoft windows_server_1909 cpe:2.3:o:microsoft:windows_server_1909:-:*:*:*:*:*:*:*
microsoft windows_server_2016 cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
microsoft windows_server_2019 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
golang go >= 1.12, < 1.12.16 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go >= 1.13, < 1.13.7 cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

References for CVE-2020-0601

cvelogic Threat Intelligence