CVE-2018-20753
CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
Kaseya VSA RMM before R9.3 9.3.0.35, R9.4 before 9.4.0.36, and R9.5 before 9.5.0.5 allows unprivileged remote attackers to execute PowerShell payloads on all managed devices. In January 2018, attackers actively exploited this vulnerability in the wild.
SeverityCritical
CVSS9.8
Exploit probability—
ProductKaseya Virtual System/Server Administrator (VSA)
PublishedFeb 5, 2019
First seenFeb 5, 2019
Added to KEVApr 13, 2022
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: May 4, 2022Update
- kaseya virtual_system_administrator9.3.0.35, 9.4.0.36, 9.5.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kaseya virtual_system_administrator | 9.3 ≤ v < 9.3.0.35, 9.4 ≤ v < 9.4.0.36, 9.5 ≤ v < 9.5.0.5 | 9.3.0.35, 9.4.0.36, 9.5.0.5 |
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