CVE-2019-25564: uvnc pchelpwarev2 Out-of-bounds Write
Vulnerability summary
CVE-2019-25564 is a medium (CVSS 6.8) Out-of-bounds Write vulnerability in uvnc pchelpwarev2. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.6% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 21-03-2026PublishedVulnerability first disclosed.
- 24-03-2026Last modifiedVulnerability information updated.
Description
PCHelpWareV2 1.0.0.5 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Group field. Attackers can paste a buffer overflow payload into the Group property field and click Ok to trigger an application crash.
CVSS metrics
4 scores · 2 sources · 2 versions- NVDNIST6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST5.0MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
+0.01 pp
From 0.42% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPCHelpWare V2 1.0.0.5 - 'Group' Denial of Service (PoC)
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Uvnc1 product
- pchelpwarev21.0.0.5
1 vendor · 1 product
References
4 links- www.uvnc.com/home.htmlProduct
- www.vulncheck.com/advisories/pchelpwarev2-denial-of-service-via-group-fieldThird Party Advisory