CVE-2014-8240: Tigervnc

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

Integer overflow in TigerVNC allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to screen size handling, which triggers a heap-based buffer overflow, a similar issue to CVE-2014-6051.

Affected products

• Tigervnc Tigervnc: version 0.0.90 only; version 0.0.91 only; version 1.0.0 only; version 1.0.1 only; version 1.1.0 only

Published 2014-10-16. Last modified 2026-06-17.