Denial of Service Vulnerability in PCHelpWareV2 by UVNC
CVE-2019-25564

6.8MEDIUM

Key Information:

Vendor

Uvnc

Status
Pchelpwarev2
Vendor
CVE Published:
21 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25564?

The PCHelpWareV2 1.0.0.5 application is susceptible to a denial of service attack due to improper handling of input in the Group field. Local attackers can leverage this vulnerability by submitting an excessively long string into the Group property field, which can lead to an application crash. This exploit is initiated by inserting a buffer overflow payload and activating the Ok button, causing instability or termination of the application.

Affected Version(s)

PCHelpWareV2 1.0.0.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25564 - Proof of Concept

References

https://www.exploit-db.com/exploits/46709
exploit
https://www.uvnc.com/home.html
product
http://www.uvnc.eu/download/pchw2/PCHelpWareV2.msi
product

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alejandra Sánchez
.