CVE-2019-25601
MEDIUMUltraVNC Launcher 1.2.2.4 Denial of Service Buffer Overflow
Title source: cnaDescription
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.
Exploits (1)
exploitdb
WORKING POC
by Victor Mondragón · pythondoswindows
https://www.exploit-db.com/exploits/46703
Scores
CVSS v3
6.2
EPSS
0.0002
EPSS Percentile
4.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-787
Status
published
Products (1)
Uvnc/UltraVNC Launcher
1.2.2.4
Published
Mar 22, 2026
Tracked Since
Mar 22, 2026