high
7.5
CWE
754
Advisory Published
Updated

CVE-2020-7539

First published: Fri Dec 11 2020(Updated: )

A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause a denial of service vulnerability when a specially crafted packet is sent to the controller over HTTP.

Credit: cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
All of
Schneider Electric Modicon M340 BMXP341000 Firmware<3.30
Schneider Electric Modicon M340 BMXP341000
All of
Schneider Electric Modicon M340 BMXP342000 Firmware<3.30
Schneider Electric Modicon M340 BMXP342000 Firmware
All of
Schneider Electric Modicon M340 BMXP3420102 Firmware<3.30
Schneider Electric Modicon M340 BMXP3420102
All of
Schneider Electric Modicon M340 BMXP3420102CL Firmware<3.30
Schneider Electric Modicon M340 BMXP3420102CL Firmware
All of
Schneider Electric Modicon M340 BMXP342020 Firmware<3.30
Schneider Electric Modicon M340 BMXP342020
All of
Schneider Electric Modicon M340 BMXP3420302 Firmware<3.30
Schneider Electric Modicon M340 BMXP3420302 Firmware
All of
Schneider Electric Modicon M340 BMXP3420302 Firmware<3.30
Schneider Electric Modicon M340 BMXP3420302CL
All of
Schneider Electric BMXNOE0100 Firmware<3.3
schneider-electric bmxnoe0100
All of
schneider-electric BMXNOE0110H<6.5
schneider-electric BMXNOE0110H
All of
schneider-electric BMXNOC0401<2.10
Schneider Electric Modicon M340 BMXNOC0401
All of
Schneider Electric Modicon TSXP574634 Firmware<6.1
schneider-electric TSXP574634 firmware
All of
schneider-electric TSXP575634<6.1
schneider-electric tsxp575634mc
All of
Schneider Electric TSXP576634 Firmware<6.1
schneider-electric tsxp576634mc
All of
Schneider Electric TSXETY4103 Firmware<6.2
Schneider Electric TSXETY4103C
All of
schneider-electric tsxety5103c firmware<6.4
schneider-electric TSXETY5103 firmware
All of
Schneider Electric 140CPU65150 Firmware<6.1
Schneider Electric 140CPU65150 Firmware
All of
Schneider Electric 140NOE77111<7.1
Schneider Electric 140NOE77111
All of
schneider-electric 140noc78100 firmware<1.74
Schneider Electric 140NOC78100
All of
Schneider Electric 140NOC78000<1.74
schneider-electric 140noc78000 firmware
All of
Schneider Electric 140NOC77101 Firmware<1.08
Schneider Electric 140NOC77101 Firmware
Schneider Electric BMXP341000 Firmware<3.30
Schneider Electric BMXP341000 Firmware
Schneider Electric BMXP342000 Firmware<3.30
Schneider Electric BMXP342000 Firmware
Schneider Electric BMXP3420102 Firmware<3.30
Schneider Electric BMXP3420102 Firmware
schneider-electric bmxp3420102cl firmware<3.30
Schneider Electric BMXP3420102CL
schneider-electric BMXP342020H firmware<3.30
schneider-electric BMXP342020H firmware
Schneider Electric BMXP3420302H firmware<3.30
Schneider Electric BMXP3420302H firmware
Schneider Electric BMXP3420302CL Firmware<3.30
Schneider Electric BMXP3420302CL Firmware
Schneider Electric BMXNOE0100 Firmware<3.3
schneider-electric bmxnoe0100
schneider-electric BMXNOE0110H<6.5
schneider-electric BMXNOE0110H
schneider-electric BMXNOC0401<2.10
Schneider Electric Modicon M340 BMXNOC0401
Schneider Electric Modicon TSXP574634 Firmware<6.1
schneider-electric TSXP574634 firmware
schneider-electric TSXP575634<6.1
schneider-electric tsxp575634mc
Schneider Electric TSXP576634 Firmware<6.1
schneider-electric tsxp576634mc
Schneider Electric TSXETY4103 Firmware<6.2
Schneider Electric TSXETY4103C
schneider-electric tsxety5103c firmware<6.4
schneider-electric TSXETY5103 firmware
Schneider Electric 140CPU65150 Firmware<6.1
Schneider Electric 140CPU65150 Firmware
Schneider Electric 140NOE77111<7.1
Schneider Electric 140NOE77111
schneider-electric 140noc78100 firmware<1.74
Schneider Electric 140NOC78100
Schneider Electric 140NOC78000<1.74
schneider-electric 140noc78000 firmware
Schneider Electric 140NOC77101 Firmware<1.08
Schneider Electric 140NOC77101 Firmware

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2020-7539.

  • What is the severity of CVE-2020-7539?

    The severity of CVE-2020-7539 is high with a CVSS score of 7.5.

  • Which software versions are affected by CVE-2020-7539?

    The Web Server on Modicon M340, Legacy Offers Modicon Quantum, and Modicon Premium with associated Communication Modules versions up to and excluding 3.30 are affected by CVE-2020-7539.

  • How can CVE-2020-7539 be exploited?

    CVE-2020-7539 can be exploited by causing a denial of service vulnerability.

  • Where can I find more information about CVE-2020-7539?

    More information about CVE-2020-7539 can be found at the following link: [SEVD-2020-343-03](https://www.se.com/ww/en/download/document/SEVD-2020-343-03/).

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