CVE-2018-20753

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88	Exploit Third Party Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152	Vendor Advisory
https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88	Exploit Third Party Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:kaseya:virtual_system_administrator::::::::
	cpe:2.3:a:kaseya:virtual_system_administrator::::::::
	cpe:2.3:a:kaseya:virtual_system_administrator::::::::

History

22 Oct 2025, 00:16

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753 -

21 Oct 2025, 20:17

Type	Values Removed	Values Added
References	~~{'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}~~

21 Oct 2025, 19:17

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753 -

Information

Published : 2019-02-05 06:29

Updated : 2025-10-22 00:16

NVD link : CVE-2018-20753

Mitre link : CVE-2018-20753

CVE.ORG link : CVE-2018-20753

JSON object : View

Products Affected

kaseya

virtual_system_administrator

CWE

NVD-CWE-noinfo

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