Is CVE-2018-20753 exploitable?

Yes — CVE-2018-20753 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it is confirmed exploited in the wild.

Is CVE-2018-20753 a false positive?

No practitioners have marked CVE-2018-20753 a false positive so far (3 verdicts).

How do I remediate CVE-2018-20753?

Practitioners have shared remediation steps for CVE-2018-20753 — see the remediation notes on this page.

CVE-2018-20753

is CVE-2018-20753real, exploitable, or a false positive? Here's the community ground truth.

☆ Watch

Critical · CVSS 9.8EPSS 29.6%CISA KEV

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

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.

References

NVD MITRE CVE.org CISA KEV

Published Feb 5, 2019

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Community ground truth

Community verdict

3 verdicts

Not a real issue

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Community real-world severity: Critical (Critical 3) — CVSS base score 9.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

0
Field note · Lin WeiCurated
Kaseya VSA Remote Code Execution Vulnerability — Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices. Listed in the CISA KEV catalog (added 2022-04-13) — confirmed exploited in the wild, not theoretical. It is linked to known ransomware campaigns. FIRST EPSS puts the chance of exploitation in the next 30 days at ~30%. Treat it as real and prioritize remediation over triage.
0
Remediation · Nadia PetrovaCurated
Required action for Kaseya Virtual System/Server Administrator (VSA): Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-05-04. After patching, verify the vulnerable path is no longer reachable before closing the finding.