What is CVE-2019-6811?

CVE-2019-6811 is an Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability that exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier.

What is the severity of CVE-2019-6811?

The severity of CVE-2019-6811 is high with a severity value of 7.5.

Which software versions are affected by CVE-2019-6811?

Modicon Quantum 140 NOE771x1 version 6.9 and earlier are affected by CVE-2019-6811.

How can CVE-2019-6811 be exploited?

CVE-2019-6811 can be exploited by sending an IP fragmented packet with a length greater than 65535 bytes to the module.

Is there a fix for CVE-2019-6811?

Yes, an update to Modicon Quantum 140 NOE771x1 firmware to a version that is later than 6.9 is available to fix CVE-2019-6811.

Vulnerability/
CVE-2019-6811

high

7.5

CWE

754

17/9/2019

4/8/2024

CVE-2019-6811

First published: Tue Sep 17 2019(Updated: )

An Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmented packet with a length greater than 65535 bytes. The module then requires a power cycle to recover.

Credit: cybersecurity@se.com

Affected Software	Affected Version	How to fix
Schneider-electric Modicon Quantum 140noe77101 Firmware	<=6.9
Schneider-electric Modicon Quantum 140noe77101
Schneider-electric Modicon Quantum 140noe77111 Firmware	<=6.9
Schneider-electric Modicon Quantum 140noe77111

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Reference Links

https://www.schneider-electric.com/en/download/document/SEVD-2019-253-02/

Frequently Asked Questions

What is CVE-2019-6811?
CVE-2019-6811 is an Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability that exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier.
What is the severity of CVE-2019-6811?
The severity of CVE-2019-6811 is high with a severity value of 7.5.
Which software versions are affected by CVE-2019-6811?
Modicon Quantum 140 NOE771x1 version 6.9 and earlier are affected by CVE-2019-6811.
How can CVE-2019-6811 be exploited?
CVE-2019-6811 can be exploited by sending an IP fragmented packet with a length greater than 65535 bytes to the module.
Is there a fix for CVE-2019-6811?
Yes, an update to Modicon Quantum 140 NOE771x1 firmware to a version that is later than 6.9 is available to fix CVE-2019-6811.

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agent/last-modified-date
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agent/weakness
agent/tags
agent/description
agent/event
agent/first-publish-date
vendor/schneider-electric
canonical/schneider-electric modicon quantum 140noe77101 firmware
version/schneider-electric modicon quantum 140noe77101 firmware/6.9
canonical/schneider-electric modicon quantum 140noe77101
canonical/schneider-electric modicon quantum 140noe77111 firmware
version/schneider-electric modicon quantum 140noe77111 firmware/6.9
canonical/schneider-electric modicon quantum 140noe77111

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