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CRITICAL SEVERITY Ransomware Linked
CVE-2018-20753 Kaseya · Virtual System/Server Administrator (VSA)

Kaseya VSA Remote Code Execution Vulnerability

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

Technical Severity

CVSS v3.1 Metrics

CRITICAL
9.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

44.44 %
Predictive Probability
Percentile Rank
97.5 th

Documented as more likely to be exploited than 97.5% of known CVEs.

Detection Date

Apr 13, 2022

Remediation Due

May 04, 2022

CISA Catalog Active

Threat Analysis

Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2018-20753