CVE-2019-6813

Name: CVE-2019-6813
Creator: NVD / NIST
Published: 2019-09-17T20:15:12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2019-6813 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions) and Modicon M340 controller (all firmware versions), which could cause denial of service when truncated SNMP packets on port 161/UDP are received by the device.. EPSS estimates a 2.08% chance of exploitation in the next 30 days.

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions) and Modicon M340 controller (all firmware versions), which could cause denial of service when truncated SNMP packets on port 161/UDP are received by the device.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.08%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Schneider-Electric	Modicon M340 Firmware	All versions
Schneider-Electric	Bmxnor0200h Firmware	All versions

References

https://security.cse.iitk.ac.in/responsible-disclosureThird Party Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-02/Vendor Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/Vendor Advisory
https://security.cse.iitk.ac.in/responsible-disclosureThird Party Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-02/Vendor Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/Vendor Advisory

Timeline

Published: Sep 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-6813?

How severe is CVE-2019-6813?

CVE-2019-6813 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6813?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-6813?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST