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CVE-2018-20019

libvncserver: Multiple heap out-of-bound writes in VNC client code

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Severity

Moderate

Red Hat Product Security

8.8

CVSS 3.0

Review impact separately from score.

Published · December 19, 2018

Updated · November 22, 2025

Description

LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code that can result remote code execution

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-416 · Use After Free