CVE-2015-6589

Name: CVE-2015-6589
Creator: NVD / NIST
Published: 2020-02-13T21:15:11.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 13.58%

Last modified Jun 17, 2026

CVE-2015-6589 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Directory 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 9.0.0.19, and 9.1.0.0 before 9.1.0.9 allows remote authenticated users to write to and execute arbitrary files due to insufficient restrictions in file paths to json.ashx.. EPSS estimates a 13.58% chance of exploitation in the next 30 days.

Description

Directory 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 9.0.0.19, and 9.1.0.0 before 9.1.0.9 allows remote authenticated users to write to and execute arbitrary files due to insufficient restrictions in file paths to json.ashx.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

13.58%

96.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Kaseya	Virtual System Administrator	>= 7.0.0.0, < 7.0.0.33
Kaseya	Virtual System Administrator	>= 8.0.0.0, < 8.0.0.23
Kaseya	Virtual System Administrator	>= 9.0.0.0, < 9.0.0.19
Kaseya	Virtual System Administrator	>= 9.1.0.0, < 9.1.0.9

References

http://packetstormsecurity.com/files/133782/Kaseya-Virtual-System-Administrator-Code-Execution-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-450Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/38351/Exploit, Third Party Advisory, VDB Entry
https://www.securityfocus.com/bid/76838Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/133782/Kaseya-Virtual-System-Administrator-Code-Execution-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-450Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/38351/Exploit, Third Party Advisory, VDB Entry
https://www.securityfocus.com/bid/76838Third Party Advisory, VDB Entry

Timeline

Published: Feb 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6589?

How severe is CVE-2015-6589?

CVE-2015-6589 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 13.58% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6589?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6589?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST