HOME VULNERABILITIESCVE-2019-15506

HIGH

CVE-2019-15506

CWE-306Published: August 26, 2019· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

An issue was discovered in Kaseya Virtual System Administrator (VSA) through 9.4.0.37. It has a critical information disclosure vulnerability. An unauthenticated attacker can send properly formatted requests to the web application and download sensitive files and information. For example, the /DATAREPORTS directory can be farmed for reports. Because this directory contains the results of reports such as NMAP, Patch Status, and Active Directory domain metadata, an attacker can easily collect this critical information and parse it for information. There are a number of directories affected.

Technical Analysis

CVE-2019-15506 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

kaseya1 product(s)

virtual system administrator

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://dfdrconsulting.com/2019/cyber-security/cve-2019-15506-kaseya-vsa-critical-information-disclosure-unauthenticated-access/

ADVISORYhttp://help.kaseya.com/WebHelp/EN/RN/index.asp#VSAReleaseNotes.htm

ADVISORYhttp://dfdrconsulting.com/2019/cyber-security/cve-2019-15506-kaseya-vsa-critical-information-disclosure-unauthenticated-access/

ADVISORYhttp://help.kaseya.com/WebHelp/EN/RN/index.asp#VSAReleaseNotes.htm

All References (4)

→

http://dfdrconsulting.com/2019/cyber-security/cve-2019-15506-kaseya-vsa-critical-information-disclosure-unauthenticated-access/Third Party Advisory

→

http://help.kaseya.com/WebHelp/EN/RN/index.asp#VSAReleaseNotes.htmRelease Notes · Vendor Advisory

→

http://dfdrconsulting.com/2019/cyber-security/cve-2019-15506-kaseya-vsa-critical-information-disclosure-unauthenticated-access/Third Party Advisory

→

http://help.kaseya.com/WebHelp/EN/RN/index.asp#VSAReleaseNotes.htmRelease Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2019-15506

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-306

CISA KEVNo

Affected1 vendor(s)

PublishedAug 26, 2019

Related CVEs (CWE-306)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-15506 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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