CVE-2018-5440 is a critical stack-based buffer overflow vulnerability affecting 3S-Smart CODESYS Web Servers, specifically standalone Version 2.3 and runtime systems prior to V1.1.9.19 on Microsoft Windows and WinCE. With a CVSS score of 9.8, this flaw allows an unauthenticated attacker to execute arbitrary code or cause a denial-of-service via a crafted request, requiring no user interaction. While there are no known public exploits or active exploitation, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.1.9.19CPE matchmatch criteria | cpe:2.3:a:3s-software:codesys_runtime_system:*:*:*:*:*:*:*:* | ||
2.3CPE matchmatch criteria | cpe:2.3:a:3s-software:codesys_web_server:2.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.