CVE-2018-7759: Buffer Overflow

Published Apr 18, 2018
·
Updated

A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. The buffer overflow vulnerability is caused by the length of the source string specified (instead of the buffer size) as the number of bytes to be copied.

Affected Software

228 affected components
All of the following
Schneider-electric Bmxnor0200 Firmware
Schneider-electric Bmxnor0200
All of the following
Schneider-electric Bmxnor0200h Firmware
Schneider-electric Bmxnor0200h
All of the following
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
All of the following
Schneider-electric 140cpu31110 Firmware
Schneider-electric 140cpu31110
All of the following
Schneider-electric 140cpu43412u Firmware
Schneider-electric 140cpu43412u
All of the following
Schneider-electric 140cpu65160 Firmware
Schneider-electric 140cpu65160
All of the following
Schneider-electric 140cpu65260 Firmware
Schneider-electric 140cpu65260
All of the following
Schneider-electric 140cpu65860 Firmware
Schneider-electric 140cpu65860
All of the following
Schneider-electric 140cpu65160s Firmware
Schneider-electric 140cpu65160s
All of the following
Schneider-electric 140cpu65150c Firmware
Schneider-electric 140cpu65150c
All of the following
Schneider-electric 140cpu31110c Firmware
Schneider-electric 140cpu31110c
All of the following
Schneider-electric 140cpu43412uc Firmware
Schneider-electric 140cpu43412uc
All of the following
Schneider-electric 140cpu65160c Firmware
Schneider-electric 140cpu65160c
All of the following
Schneider-electric 140cpu65260c Firmware
Schneider-electric 140cpu65260c
All of the following
Schneider-electric 140cpu65860c Firmware
Schneider-electric 140cpu65860c
All of the following
Schneider-electric Modicon M340 Bmxp341000 Firmware
Schneider-electric Modicon M340 Bmxp341000
All of the following
Schneider-electric Modicon M340 Bmxp342000 Firmware
Schneider-electric Modicon M340 Bmxp342000
All of the following
Schneider-electric Modicon M340 Bmxp3420102 Firmware
Schneider-electric Modicon M340 Bmxp3420102
All of the following
Schneider-electric Modicon M340 Bmxp3420102cl Firmware
Schneider-electric Modicon M340 Bmxp3420102cl
All of the following
Schneider-electric Modicon M340 Bmxp342020 Firmware
Schneider-electric Modicon M340 Bmxp342020
All of the following
Schneider-electric Modicon M340 Bmxp3420302 Firmware
Schneider-electric Modicon M340 Bmxp3420302
All of the following
Schneider-electric Modicon M340 Bmxp3420302cl Firmware
Schneider-electric Modicon M340 Bmxp3420302cl
All of the following
Schneider-electric Modicon M340 Bmxp3420302h Firmware
Schneider-electric Modicon M340 Bmxp3420302h
All of the following
Schneider-electric Modicon M340 Bmxp342020h Firmware
Schneider-electric Modicon M340 Bmxp342020h
All of the following
Schneider-electric Modicon M340 Bmxp341000h Firmware
Schneider-electric Modicon M340 Bmxp341000h
All of the following
Schneider-electric Tsxh5724m Firmware
Schneider-electric Tsxh5724m
All of the following
Schneider-electric Tsxh5744m Firmware
Schneider-electric Tsxh5744m
All of the following
Schneider-electric Tsxp57104m Firmware
Schneider-electric Tsxp57104m
All of the following
Schneider-electric Tsxp57154m Firmware
Schneider-electric Tsxp57154m
All of the following
Schneider-electric Tsxp571634m Firmware
Schneider-electric Tsxp571634m
All of the following
Schneider-electric Tsxp57204m Firmware
Schneider-electric Tsxp57204m
All of the following
Schneider-electric Tsxp57254m Firmware
Schneider-electric Tsxp57254m
All of the following
Schneider-electric Tsxp572634m Firmware
Schneider-electric Tsxp572634m
All of the following
Schneider-electric Tsxp57304m Firmware
Schneider-electric Tsxp57304m
All of the following
Schneider-electric Tsxp57354m Firmware
Schneider-electric Tsxp57354m
All of the following
Schneider-electric Tsxp573634m Firmware
Schneider-electric Tsxp573634m
All of the following
Schneider-electric Tsxp57454m Firmware
Schneider-electric Tsxp57454m
All of the following
Schneider-electric Tsxp574634m Firmware
Schneider-electric Tsxp574634m
All of the following
Schneider-electric Tsxp575634m Firmware
Schneider-electric Tsxp575634m
All of the following
Schneider-electric Tsxp576634m Firmware
Schneider-electric Tsxp576634m
All of the following
Schneider-electric Tsxh5724mc Firmware
Schneider-electric Tsxh5724mc
All of the following
Schneider-electric Tsxh5744mc Firmware
Schneider-electric Tsxh5744mc
All of the following
Schneider-electric Tsxp57104mc Firmware
Schneider-electric Tsxp57104mc
All of the following
Schneider-electric Tsxp57154mc Firmware
Schneider-electric Tsxp57154mc
All of the following
Schneider-electric Tsxp571634mc Firmware
Schneider-electric Tsxp571634mc
All of the following
Schneider-electric Tsxp57204mc Firmware
Schneider-electric Tsxp57204mc
All of the following
Schneider-electric Tsxp57254mc Firmware
Schneider-electric Tsxp57254mc
All of the following
Schneider-electric Tsxp572634mc Firmware
Schneider-electric Tsxp572634mc
All of the following
Schneider-electric Tsxp57304mc Firmware
Schneider-electric Tsxp57304mc
All of the following
Schneider-electric Tsxp57354mc Firmware
Schneider-electric Tsxp57354mc
All of the following
Schneider-electric Tsxp573634mc Firmware
Schneider-electric Tsxp573634mc
All of the following
Schneider-electric Tsxp57454mc Firmware
Schneider-electric Tsxp57454mc
All of the following
Schneider-electric Tsxp574634mc Firmware
Schneider-electric Tsxp574634mc
All of the following
Schneider-electric Tsxp57554mc Firmware
Schneider-electric Tsxp57554mc
All of the following
Schneider-electric Tsxp575634mc Firmware
Schneider-electric Tsxp575634mc
All of the following
Schneider-electric Tsxp576634mc Firmware
Schneider-electric Tsxp576634mc
All of the following
Schneider-electric Tsxp57554m Firmware
Schneider-electric Tsxp57554m
Schneider-electric Bmxnor0200 Firmware
Schneider-electric Bmxnor0200
Schneider-electric Bmxnor0200h Firmware
Schneider-electric Bmxnor0200h
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
Schneider-electric 140cpu31110 Firmware
Schneider-electric 140cpu31110
Schneider-electric 140cpu43412u Firmware
Schneider-electric 140cpu43412u
Schneider-electric 140cpu65160 Firmware
Schneider-electric 140cpu65160
Schneider-electric 140cpu65260 Firmware
Schneider-electric 140cpu65260
Schneider-electric 140cpu65860 Firmware
Schneider-electric 140cpu65860
Schneider-electric 140cpu65160s Firmware
Schneider-electric 140cpu65160s
Schneider-electric 140cpu65150c Firmware
Schneider-electric 140cpu65150c
Schneider-electric 140cpu31110c Firmware
Schneider-electric 140cpu31110c
Schneider-electric 140cpu43412uc Firmware
Schneider-electric 140cpu43412uc
Schneider-electric 140cpu65160c Firmware
Schneider-electric 140cpu65160c
Schneider-electric 140cpu65260c Firmware
Schneider-electric 140cpu65260c
Schneider-electric 140cpu65860c Firmware
Schneider-electric 140cpu65860c
Schneider-electric Bmxp341000 Firmware
Schneider-electric Bmxp341000
Schneider-electric Bmxp342000 Firmware
Schneider-electric Bmxp342000
Schneider-electric Bmxp3420102 Firmware
Schneider-electric Bmxp3420102
Schneider-electric Bmxp3420102cl Firmware
Schneider-electric Bmxp3420102cl
Schneider-electric Bmxp342020 Firmware
Schneider-electric Bmxp342020
Schneider-electric Bmxp3420302 Firmware
Schneider-electric Bmxp3420302
Schneider-electric Bmxp3420302cl Firmware
Schneider-electric Bmxp3420302cl
Schneider-electric Bmxp3420302h Firmware
Schneider-electric Bmxp3420302h
Schneider-electric Bmxp342020h Firmware
Schneider-electric Bmxp342020h
Schneider-electric Bmxp341000h Firmware
Schneider-electric Bmxp341000h
Schneider-electric Tsxh5724m Firmware
Schneider-electric Tsxh5724m
Schneider-electric Tsxh5744m Firmware
Schneider-electric Tsxh5744m
Schneider-electric Tsxp57104m Firmware
Schneider-electric Tsxp57104m
Schneider-electric Tsxp57154m Firmware
Schneider-electric Tsxp57154m
Schneider-electric Tsxp571634m Firmware
Schneider-electric Tsxp571634m
Schneider-electric Tsxp57204m Firmware
Schneider-electric Tsxp57204m
Schneider-electric Tsxp57254m Firmware
Schneider-electric Tsxp57254m
Schneider-electric Tsxp572634m Firmware
Schneider-electric Tsxp572634m
Schneider-electric Tsxp57304m Firmware
Schneider-electric Tsxp57304m
Schneider-electric Tsxp57354m Firmware
Schneider-electric Tsxp57354m
Schneider-electric Tsxp573634m Firmware
Schneider-electric Tsxp573634m
Schneider-electric Tsxp57454m Firmware
Schneider-electric Tsxp57454m
Schneider-electric Tsxp574634m Firmware
Schneider-electric Tsxp574634m
Schneider-electric Tsxp575634m Firmware
Schneider-electric Tsxp575634m
Schneider-electric Tsxp576634m Firmware
Schneider-electric Tsxp576634m
Schneider-electric Tsxh5724mc Firmware
Schneider-electric Tsxh5724mc
Schneider-electric Tsxh5744mc Firmware
Schneider-electric Tsxh5744mc
Schneider-electric Tsxp57104mc Firmware
Schneider-electric Tsxp57104mc
Schneider-electric Tsxp57154mc Firmware
Schneider-electric Tsxp57154mc
Schneider-electric Tsxp571634mc Firmware
Schneider-electric Tsxp571634mc
Schneider-electric Tsxp57204mc Firmware
Schneider-electric Tsxp57204mc
Schneider-electric Tsxp57254mc Firmware
Schneider-electric Tsxp57254mc
Schneider-electric Tsxp572634mc Firmware
Schneider-electric Tsxp572634mc
Schneider-electric Tsxp57304mc Firmware
Schneider-electric Tsxp57304mc
Schneider-electric Tsxp57354mc Firmware
Schneider-electric Tsxp57354mc
Schneider-electric Tsxp573634mc Firmware
Schneider-electric Tsxp573634mc
Schneider-electric Tsxp57454mc Firmware
Schneider-electric Tsxp57454mc
Schneider-electric Tsxp574634mc Firmware
Schneider-electric Tsxp574634mc
Schneider-electric Tsxp57554mc Firmware
Schneider-electric Tsxp57554mc
Schneider-electric Tsxp575634mc Firmware
Schneider-electric Tsxp575634mc
Schneider-electric Tsxp576634mc Firmware
Schneider-electric Tsxp576634mc
Schneider-electric Tsxp57554m Firmware
Schneider-electric Tsxp57554m

Event History

Apr 18, 2018
CVE Published
via MITRE·08:00 PM
Data Sourced
via MITRE·08:00 PM
DescriptionWeakness
Data Sourced
via NVD·08:29 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2018-7759?

CVE-2018-7759 has a critical severity due to its buffer overflow vulnerability.

2

How do I fix CVE-2018-7759?

To fix CVE-2018-7759, update your affected Schneider Electric PLCs to the latest available firmware version.

3

Which devices are affected by CVE-2018-7759?

CVE-2018-7759 affects Schneider Electric’s Modicon M340, Modicon Premium, and Modicon Quantum PLCs, among others.

4

What types of vulnerabilities does CVE-2018-7759 involve?

CVE-2018-7759 involves a buffer overflow vulnerability that can lead to arbitrary code execution.

5

Is CVE-2018-7759 exploitable?

Yes, CVE-2018-7759 is exploitable and can allow an attacker to execute arbitrary code on the affected devices.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203