Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability

Technical Severity

CVSS v3.1 Metrics

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

Exploitation Likelihood

EPSS Prediction

21.03 %

Predictive Probability

Percentile Rank

97.3 th

Documented as more likely to be exploited than 97.3% of known CVEs.

Detection Date

Apr 13, 2026

Remediation Due

Apr 27, 2026

CISA Catalog Active

Threat Analysis

Microsoft Visual Basic for Applications (VBA) contains an insecure library loading vulnerability that could allow for remote code execution.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-046

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2012-1854