{"id":"CVE-2018-20753","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20753","generatedAt":"2026-10-28T20:12:16.177Z","title":"Kaseya VSA Remote Code Execution Vulnerability","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.","published":"2019-02-05T06:29:01.000Z","lastModified":"2026-08-13T05:17:18.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["kaseya/virtual system administrator"],"epss":{"score":0.29551,"percentile":0.98178,"date":"2026-10-27","history":[]},"kev":{"listed":true,"dateAdded":"2022-04-13","dueDate":"2022-05-04","knownRansomwareCampaignUse":"Known","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20753"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 4 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20753","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}