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Case File

CVE-2018-20748

CRITICAL · CVSS 9.8 EPSS 3.26% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-01-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗ github.com ↗ github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-20748
Severity
CRITICAL
CVSS
9.8
EPSS
3.26%

Original NVD Description

LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-14355 MEDIUM CVE-2026-28385 MEDIUM CVE-2026-9640 HIGH CVE-2026-9639 MEDIUM CVE-2026-12411 HIGH CVE-2026-56968 LOW