CVE-2020-1464Actively exploitedAdded to KEV 2021-11-03

Microsoft Windows Spoofing Vulnerability

Microsoft, Windows

Description

Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

High

38.9%

estimated chance of real-world exploitation in the next 30 days, higher than 98.6% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-05-03

CWE-347

Talk to us about this

Penetration Testing

Confirm whether this vulnerability class is actually exploitable in your environment.

Security Engineering

Get help implementing the required action and closing the gap.

Our guide to vulnerability management and patch prioritization

View on CISA's KEV catalog View on NVD

Not sure if this affects you?

We help organizations confirm real exposure and prioritize what actually needs fixing first.

Request a Security Assessment Browse Services