CVE-2020-25708

HIGH

Libvncserver - Divide By Zero

Title source: rule

Description

A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.

References (2)

[Exploit, Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1896739

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2022/09/msg00035.html

Scores

CVSS v3 7.5

EPSS 0.0078

EPSS Percentile 73.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-369

Status published

Affected Products (5)

libvncserver_project/libvncserver

redhat/enterprise_linux

debian/debian_linux

Timeline

Published Nov 27, 2020

Tracked Since Feb 18, 2026