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Public proof of conceptFix available

CVE-2015-6922

A public proof of concept exists; no exploitation attested.

  • Published2020-02-17
  • Fixed in9.1.0.9 · 9.0.0.19 · 8.0.0.23 · 7.0.0.33
  • WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2015-09-29Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-04 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-6922?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-6922?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Kaseya virtual system administrator
BranchAffectedFixed in
9.1≥ 9.1.0.0, < 9.1.0.99.1.0.9
9.0≥ 9.0.0.0, < 9.0.0.199.0.0.19
8.0≥ 8.0.0.0, < 8.0.0.238.0.0.23
7.0≥ 7.0.0.0, < 7.0.0.337.0.0.33

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Kaseya virtual system administrator to 9.1.0.9 · 9.0.0.19 · 8.0.0.23 · 7.0.0.33

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-38351EDB-38401
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
2 modulesexploit/windows/http/kaseya_uploaderrank: excellentauxiliary/admin/http/kaseya_master_adminrank: normalModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-02-17
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2015-6922?

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.

Is CVE-2015-6922 actively exploited?

Active exploitation of CVE-2015-6922 has not been confirmed. Its EPSS score was 82.1% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-6922?

CVE-2015-6922 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record