CVE-2018-20753
Actively exploited. CVE-2018-20753 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.
CSIRTS triage
- What
- Kaseya VSA allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.
- Who is affected
- All managed devices using Kaseya VSA are affected.
- Urgency
- Immediate remediation is necessary as the vulnerability is actively exploited and is critical in severity.
- Action
- Apply the latest security patch for Kaseya VSA.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2018-20753: Kaseya VSA Remote Code Execution Vulnerabilitycisa-kev · 2022-04-13
External references
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[](https://www.csirts.com/cve/CVE-2018-20753)