CVE-2020-1464

7.8 HIGH CISA KEV - Actively Exploited
Published: August 17, 2020 Modified: October 29, 2025
View on NVD

Description

A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files. In an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded. The update addresses the vulnerability by correcting how Windows validates file signatures.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html
Source: secure@microsoft.com
Third Party Advisory
https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/
Source: secure@microsoft.com
Issue Tracking Third Party Advisory
https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd
Source: secure@microsoft.com
Exploit Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464
Source: secure@microsoft.com
Patch Vendor Advisory
https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1464
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
11.8%
93th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-05-03

Weaknesses (CWE)

CWE-347 CWE-347

Affected Vendors

microsoft

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