VulnerabilityModified

CVE-2015-6922

EXPLOIT ×2 ✓CRITICAL 9.8EPSS 82.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 82.1%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 82.10% probability · 100th percentile
Public exploits: 2 in Exploit-DB · verified · first 29 September 2015
CISA KEV: Not listed
Weakness: CWE-287
Affected: kaseya/virtual system administrator
Source: cve@mitre.org

EPSS trend

EPSS 82.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (2)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-38401 source ↗	Kaseya Virtual System Administrator (VSA) - 'uploader.aspx' Arbitrary File Upload (Metasploit)windows · Metasploit	remote	5 October 2015	yes
EDB-38351 source ↗	Kaseya Virtual System Administrator (VSA) - Multiple Vulnerabilities (2)asp · Pedro Ribeiro	webapps	29 September 2015	yes

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.