CVE-2018-20753

Act now ● On CISA KEV — actively exploited used in ransomware

Actively exploited — on the CISA KEV list.

CVSS base

9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — probability of exploitation (30 days)

29.3%

98.1th percentile

CISA KEV

Listed

Added 2022-04-13 · patch by 2022-05-04

Weakness / dates

—

Published 2019-02-05 · modified 2026-08-13

CVSS breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector	N	Network
Attack Complexity	L	Low
Privileges Required	N	None
User Interaction	N	None
Scope	U	Unchanged
Confidentiality	H	High
Integrity	H	High
Availability	H	High

Timeline

2019-02-05 — Published (NVD)
2022-04-13 — Added to CISA KEV (actively exploited)
2022-05-04 — CISA patch-by deadline
2026-08-13 — Last modified (NVD)

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.

Affected

kaseya

References

Official: NVD · CVE.org