CVE-2019-8262: Siemens Sinumerik Access mymachine/p2p

Critical severity, CVSS 9.8. EPSS: 4.8% chance of exploitation in the next 30 days.

UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204.

Affected products

• Siemens Sinumerik Access mymachine/p2p: before 4.8 (fixed in 4.8)
• Siemens Sinumerik Pcu Base WIN10 Software/ipc: before 14.00 (fixed in 14.00)
• Siemens Sinumerik Pcu Base WIN7 Software/ipc: up to and including 12.01
• Uvnc Ultravnc: before 1.2.2.3 (fixed in 1.2.2.3)

Published 2019-03-05. Last modified 2026-06-17.