CVE-2020-14401: Debian Linux

Medium severity, CVSS 6.5. EPSS: 2.5% chance of exploitation in the next 30 days.

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/scale.c has a pixel_value integer overflow.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Libvncserver Project Libvncserver: before 0.9.13 (fixed in 0.9.13)
• Opensuse Leap: version 15.1 only; version 15.2 only
• Siemens SIMATIC ITC1500 Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)
• Siemens SIMATIC ITC1500 Pro Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)
• Siemens SIMATIC ITC1900 Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)
• Siemens SIMATIC ITC1900 Pro Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)
• Siemens SIMATIC ITC2200 Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)
• Siemens SIMATIC ITC2200 Pro Firmware: from 3.0.0.0, before 3.2.1.0 (fixed in 3.2.1.0)

Published 2020-06-17. Last modified 2026-06-17.