CVE-2015-6922

Name: CVE-2015-6922
Creator: NVD / NIST
Published: 2020-02-17T18:15:11.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 82.10%

Last modified Jun 17, 2026

CVE-2015-6922 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.33, 8.x before 8.0.0.23, 9.0 before 9.0.0.19, and 9.1 before 9.1.0.9 does not properly require authentication, which allows remote attackers to bypass authentication and (1) add an administrative account via crafted request to LocalAuth/setAccount.aspx or (2) write to and execute arbitrary files via a full pathname in the PathData parameter to ConfigTab/uploader.aspx.. EPSS estimates a 82.10% chance of exploitation in the next 30 days.

Description

Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.33, 8.x before 8.0.0.23, 9.0 before 9.0.0.19, and 9.1 before 9.1.0.9 does not properly require authentication, which allows remote attackers to bypass authentication and (1) add an administrative account via crafted request to LocalAuth/setAccount.aspx or (2) write to and execute arbitrary files via a full pathname in the PathData parameter to ConfigTab/uploader.aspx.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

82.10%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

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-15-448Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-449Third Party Advisory, VDB Entry
https://helpdesk.kaseya.com/entries/96164487--Kaseya-Security-AdvisoryBroken Link, Vendor Advisory
https://www.exploit-db.com/exploits/38351/Exploit, Third 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-15-448Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-449Third Party Advisory, VDB Entry
https://helpdesk.kaseya.com/entries/96164487--Kaseya-Security-AdvisoryBroken Link, Vendor Advisory
https://www.exploit-db.com/exploits/38351/Exploit, Third Party Advisory, VDB Entry

Timeline

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

Frequently Asked Questions

What is CVE-2015-6922?

How severe is CVE-2015-6922?

CVE-2015-6922 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 82.10% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6922?

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.

How Strix Helps

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Source: NVD / NIST