{"id":"CVE-2018-20753","aliases":["EUVD-2018-13296","GHSA-hhg2-f289-m44w"],"status":"published","title":"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...","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.29551,"percentile":0.98201,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"published":"2019-02-05T05:00:00Z","modified":"2026-08-13T05:17:18Z","kev":{"date_added":"2022-04-13","due_date":"2022-05-04","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2022-04-13"},{"source":"kev","since":"2022-04-13"}],"products":[{"vendor":"kaseya","product":"virtual system/server administrator (vsa)"},{"vendor":"kaseya","product":"virtual_system_administrator"}],"references":[{"url":"https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20753"},{"url":"https://github.com/advisories/GHSA-hhg2-f289-m44w"}],"sources":{"cve":[{"id":"CVE-2018-20753","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.","status":"published","published":"2019-02-05T05:00:00Z","modified":"2026-08-13T03:55:34.805Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-13296","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.","status":"published","published":"2019-02-05T05:00:00Z","modified":"2026-08-13T03:55:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2022-04-13","updated_at":"2026-11-02T18:01:57.213133Z"}],"ghsa":[{"id":"GHSA-hhg2-f289-m44w","title":"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...","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.","status":"published","published":"2022-05-13T01:51:06Z","modified":"2025-10-22T00:31:37Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:04:04.176931Z"}],"kev":[{"id":"CVE-2018-20753","title":"Kaseya VSA Remote Code Execution Vulnerability","description":"Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.","kev":{"date_added":"2022-04-13","due_date":"2022-05-04","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2018-20753","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.","status":"published","published":"2019-02-05T06:29:00.593Z","modified":"2026-08-13T05:17:18.22Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:04:53.728218Z"}]}}