What is CVE-2018-5440?

CVE-2018-5440 is a critical-severity vulnerability in 3s-software Codesys_runtime_system, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2018-02-15.

How severe is CVE-2018-5440?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in 3s-software Codesys_runtime_system

CVE-2018-5440

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…

Vulnerability class: Buffer Overflow

EPSS: 0.031 (86.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

3s-software Codesys_runtime_system
3s-software Codesys_web_server — versions 2.3
N/a 3s-smart Software Solutions Gmbh Codesys Web Server — versions 3S-Smart Software Solutions GmbH CODESYS Web Server

Weakness classification (CWE)

References

ics-cert@hq.dhs.gov (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-5440?: CVE-2018-5440 is a critical-severity vulnerability in 3s-software Codesys_runtime_system, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2018-02-15.
How severe is CVE-2018-5440?: Critical severity. CVSS v3 base score is 9.8 out of 10.