CVE•Published 2019-02-05•Modified 2026-08-13•1 article on news•6 live references•NVD data
CVE-2018-20753Kaseya · Virtual_system_administrator
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
98
Exploit Prediction Scoring System · top 2% of all CVEs
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.
Timeline
Published 2019-02-05
Modified 2026-08-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2018-20753Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Kaseya Virtual System Administrator"All exposed Kaseya Virtual System Administrator instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Virtual System Administrator"HTTP body or banner mentions "Virtual System Administrator" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2018-20753Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2018-20753Censys host search filtered to this CVE id.
grep.app
CVE-2018-20753Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2018-20753GitHub code search for direct mentions.
Google dork
"CVE-2018-20753" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (2)
CVE-2018-207532 repos