CVE-2019-15680: Tightvnc

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.

Affected products

• Tightvnc Tightvnc: version 1.3.10 only

Published 2019-10-29. Last modified 2026-06-17.