What is CVE-2019-6811?

CVE-2019-6811 is a high-severity vulnerability in Schneider-Electric Modicon Quantum 140noe77101, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2019-09-17.

How severe is CVE-2019-6811?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Schneider-Electric Modicon Quantum 140noe77101

CVE-2019-6811

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.

EPSS: 0.013 (67.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

cybersecurity@se.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-6811?: CVE-2019-6811 is a high-severity vulnerability in Schneider-Electric Modicon Quantum 140noe77101, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2019-09-17.
How severe is CVE-2019-6811?: High severity. CVSS v3 base score is 7.5 out of 10.