Live › vulnerability › CVE-2018-20753
Go to dashboardKaseya VSA, a remote monitoring and management server, has a flaw that lets unauthenticated remote attackers run PowerShell payloads on every managed device. Attackers get code execution across the whole fleet of endpoints the server manages, and the flaw is known to be exploited, including in ransomware campaigns.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Kaseya Virtual System/Server Administrator (VSA) | vendor | – | – |
Unknown from the sources.
Apply the Kaseya-provided updates for VSA per vendor instructions (CISA required action); the specific fixed version is unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
This page as .md · .json · in your agent: get_signal("CVE-2018-20753")
CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.