CVE-2019-25601 (GCVE-0-2019-25601)
Vulnerability from cvelistv5 – Published: 2026-03-22 13:38 – Updated: 2026-10-01 21:44
VLAI
EPSS
VEX
Title
UltraVNC Launcher 1.2.2.4 Denial of Service Buffer Overflow
Summary
UltraVNC Launcher 1.2.2.4 contains a buffer overflow vulnerability in the Path vncviewer.exe property field that allows local attackers to crash the application by supplying an excessively long string. Attackers can input a 300-byte payload of repeated characters through the Properties dialog to trigger a denial of service condition.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 16:16 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46703 | exploit |
| https://www.uvnc.com/ | product |
| https://www.uvnc.com/downloads/ultravnc/126-downl… | product |
| https://www.vulncheck.com/advisories/ultravnc-lau… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Uvnc | UltraVNC Launcher |
Affected:
1.2.2.4
cpe:2.3:a:uvnc:ultravnc:1.2.2.4:*:*:*:*:*:*:* |
Date Public
2019-04-14 00:00
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