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Vulnerability record · CVE-2019-15506 · published 26 August 2019

CVE-2019-15506: Kaseya virtual system administrator missing authentication for critical function vulnerability

Kaseya · Virtual System Administrator

An issue was discovered in Kaseya Virtual System Administrator (VSA) through 9.4.0.37. It has a critical information disclosure vulnerability. An unauthenticated attacker can send properly formatted requests to the web application and download sensitive files and information. For example, the /DATAREPORTS directory can be farmed for reports. Because this directory contains the results of reports such as NMAP, Patch Status, and Active Directory domain metadata, an attacker can easily collect this critical information and parse it for information. There are a number of directories affected.

7.5 CVSS 3.0 High EPSS 1.8% · top 22.3% CWE-306 · Missing authentication for critical function
7.5CVSS 3.0 base score, v2 7.8
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Kaseya Virtual System Administrator (VSA) through 9.4.0.37. It has a critical information disclosure vulnerability. An unauthenticated attacker can send properly formatted requests to the web application and download sensitive files and information. For example, the /DATAREPORTS directory can be farmed for reports. Because this directory contains the results of reports such as NMAP, Patch Status, and Active Directory domain metadata, an attacker can easily collect this critical information and parse it for information. There are a number of directories affected.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-20753Kaseya VSA RMM unauthenticated remote code executionKaseya 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 payload…KEVEPSS 29%analysed9.8CVE-2015-6922Kaseya VSA authentication bypass allows admin account creation and code executionKaseya Virtual System Administrator (VSA) versions 7.x, 8.x, 9.0 and 9.1 before their respective fixed builds fail to properly require authentication…EPSS 82%analysed8.8CVE-2015-6589Kaseya virtual system administrator path traversal vulnerabilityDirectory traversal vulnerability in Kaseya Virtual System Administrator (VSA) 7.0.0.0 before 7.0.0.33, 8..0.0.0 before 8.0.0.23, 9.0.0.0 before 9.0.…EPSS 14%7.4CVE-2017-12410Kaseya virtual system administrator race condition vulnerabilityIt is possible to exploit a Time of Check & Time of Use (TOCTOU) vulnerability by winning a race condition when Kaseya Virtual System Administrator a…EPSS 0.25%4.3CVE-2015-2863Kaseya virtual system administrator vulnerabilityOpen redirect vulnerability in Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 before 9.0.0.14, and 9.1 befor…EPSS 10%4.0CVE-2015-2862Kaseya virtual system administrator path traversal vulnerabilityDirectory traversal vulnerability in Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 before 9.0.0.14, and 9.1…EPSS 9.5%1.7CVE-2014-2926Kaseya virtual system administrator vulnerabilitykapfa.sys in Kaseya Virtual System Administrator (VSA) 6.5 before 6.5.0.17 and 7.0 before 7.0.0.16 allows local users to cause a denial of service (N…EPSS 0.33%8.8CVE-2026-67277MikroTik RouterOS btest missing authentication leaks kernel memory and crashes kernelRouterOS accepts a "related" btest connection before the primary session is authenticated, letting an unauthenticated client start an IPv4 UDP test. …KEVEPSS 1.6%analysed

Source: NIST National Vulnerability Database (record CVE-2019-15506), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.