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CVE-2018-20753: Kaseya VSA Remote Code Execution Vulnerability

criticalknown exploitedCVE-2018-20753
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.

CSIRTS triage

vendor: Kaseyaproduct: VSARemote code execution
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.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-04-13
Exploitation
Observed in the wild (CISA KEV)

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

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2018-20753coverage & exploitation statusNVD · CVE.org

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