CVE-2019-25563

PCHelpWareV2 1.0.0.5 contains a denial of service vulnerability that allows local attackers to crash the application by supplying a malformed image file. Attackers can trigger the vulnerability through the Create SC feature by selecting a crafted BMP file with an oversized buffer, causing the application to crash.

Score

CVSS 4.0 6.9 Medium

Status

Analyzed - disclosure@vulncheck.com

Published

2026-03-21

Last modified

2026-03-23

Weaknesses

CWE-226

Affected products

• Pchelpwarev2 (Uvnc)
• Ultravnc (Uvnc)

References

• http://www.uvnc.eu/download/pchw2/PCHelpWareV2.msi
• https://www.exploit-db.com/exploits/46708
• https://www.uvnc.com/home.html
• https://www.vulncheck.com/advisories/pchelpwarev2-denial-of-service-via-sc-creation