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CVE-2019-6851

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon...

7.5 High

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

29.1%Up 28.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.

Record
CVE-2019-6851
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-538, CWE-200
Updated
2026-11-02
CVE List No score

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.

Record
CVE-2019-6851
Weakness
CWE-538
Updated
2026-11-02
EUVDEUVD-2019-16405 No score

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.

Record
EUVD-2019-16405
Updated
2026-11-03
GitHub AdvisoriesGHSA-6j7h-88x9-v95m No score

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon...

A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.

Record
GHSA-6j7h-88x9-v95m
Weakness
CWE-200
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-6851 is a high vulnerability (CVSS 7.5) in Schneider-electric Modicon M340 Firmware, published October 29, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 29.1%, the 98th percentile. No source names a fixed version.

References

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