VULNERABILITY INTELLIGENCE

CVE-2019-8268

CVSS score9.8 CRITICAL
EPSS probability3.92%
CISA KEVNot currently listed
Published2019-03-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207.

Weakness classification

  • CWE-193: Off-by-one Error

Primary references