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Vulnerability record · CVE-2017-12410 · published 26 March 2018

CVE-2017-12410: Kaseya virtual system administrator race condition vulnerability

Kaseya · Virtual System Administrator

It is possible to exploit a Time of Check & Time of Use (TOCTOU) vulnerability by winning a race condition when Kaseya Virtual System Administrator agent 9.3.0.11 and earlier tries to execute its binaries from working and/or temporary folders. Successful exploitation results in the execution of arbitrary programs with "NT AUTHORITY\SYSTEM" privileges.

7.4 CVSS 3.0 High EPSS 0.25% · top 85.7% CWE-362 · Race condition
7.4CVSS 3.0 base score, v2 6.9
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

It is possible to exploit a Time of Check & Time of Use (TOCTOU) vulnerability by winning a race condition when Kaseya Virtual System Administrator agent 9.3.0.11 and earlier tries to execute its binaries from working and/or temporary folders. Successful exploitation results in the execution of arbitrary programs with "NT AUTHORITY\SYSTEM" privileges.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/archive/1/541884/100/0/threaded
http://www.securityfocus.com/archive/1/541884/100/0/threaded

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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%7.5CVE-2019-15506Kaseya virtual system administrator missing authentication for critical function vulnerabilityAn issue was discovered in Kaseya Virtual System Administrator (VSA) through 9.4.0.37. It has a critical information disclosure vulnerability. An una…EPSS 1.8%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%5.5CVE-2025-39964Linux kernel af_alg race condition allows concurrent socket writesThe Linux kernel's af_alg crypto socket implementation did not prevent two concurrent writes to the same socket, allowing data to be interleaved unpr…KEVEPSS 1.00%analysed

Source: NIST National Vulnerability Database (record CVE-2017-12410), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.