CVE-2019-0541Actively exploitedAdded to KEV 2021-11-03

Microsoft MSHTML Remote Code Execution Vulnerability

Microsoft, MSHTML

Description

Microsoft MSHTML engine contains an improper input validation vulnerability that allows for remote code execution vulnerability.

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

EPSS, exploit probability

Critical

53.2%

estimated chance of real-world exploitation in the next 30 days, higher than 99.0% 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

Talk to us about this

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

Get help implementing the required action and closing the gap.

Not sure if this affects you?

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