SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-6589

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…

EXPLOIT ×2 ✓HIGH 8.8EPSS 13.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
13.58% probability · 96th percentile
Public exploits
2 in Exploit-DB · verified · first 28 September 2015
CISA KEV
Not listed
Weakness
CWE-22
Affected
kaseya/virtual system administrator
Source
cve@mitre.org
EPSS trend
0%8%15%26 October 2026: 13.58%26 October 202626 October 2026

EPSS 13.6% since 26 October 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-IDTitleTypePublishedVerified
EDB-38351source ↗Kaseya Virtual System Administrator (VSA) - Multiple Vulnerabilities (2)asp · Pedro Ribeirowebapps29 September 2015yes
EDB-43882source ↗Kaseya Virtual System Administrator (VSA) 7.0 < 9.1 - (Authenticated) Arbitrary File Uploadasp · Pedro Ribeirowebapps28 September 2015no

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