Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability

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

Technical Severity

HIGH

7.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation Likelihood

42.73 %

Predictive Probability

Percentile Rank

97.4 th

Documented as more likely to be exploited than 97.4% of known CVEs.

Detection Date

Mar 28, 2022

Remediation Due

Apr 18, 2022

CISA Catalog Active

Threat Analysis

Microsoft Office Access Connectivity Engine contains an unspecified vulnerability which can allow for remote code execution.

Apply updates per vendor instructions.

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2021-38646