AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2018-5440

CRITICAL · CVSS 9.8 EPSS 3.10%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-02-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Microsoft, Windows. It may lead to a denial-of-service condition.

CVE
CVE-2018-5440
Severity
CRITICAL
CVSS
9.8
EPSS
3.10%
Microsoft Windows

Original NVD Description

A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server. Specifically: all Microsoft Windows (also WinCE) based CODESYS web servers running stand-alone Version 2.3, or as part of the CODESYS runtime system running prior to Version V1.1.9.19. A crafted request may cause a buffer overflow and could therefore execute arbitrary code on the web server or lead to a denial-of-service condition due to a crash in the web server.