Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
n/a n/a — Kaseya Virtual System/Server Administrator (VSA)
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H H H 9.8 .2934 98.0 YES
AFFECTED
Product Versions Fixed
n/a n/a – —
TIMELINE
Feb 4 Reserved by mitre
Apr 13 Added to CISA KEV, remediation due 2022-05-04
Apr 13 Published (CNA: mitre)
Aug 13 EXPLOIT PUBLISHED — CVE-2018-20753. Public exploit reference added.
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.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
| February 4, 2019 | Reserved | Reserved by mitre |
| April 13, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-05-04 |
| April 13, 2022 | Published | Published (CNA: mitre) |
| August 13, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2018-20753. Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| n/a | n/a | — | n/a | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-20753 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.