Microsoft Internet Explorer Memory Corruption Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

HIGH

7.5 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

94.06 %

Predictive Probability

Percentile Rank

99.8 th

Documented as more likely to be exploited than 99.8% of known CVEs.

Detection Date

Mar 28, 2022

Remediation Due

Apr 18, 2022

CISA Catalog Active

Threat Analysis

The Microsoft JScript nd VBScript engines, as used in Internet Explorer and other products, allow attackers to execute remote code or cause a denial of service (memory corruption) via a crafted web site.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2016-0189