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CRITICAL

CVE-2019-6808

CVSS v3

9.8

CRITICAL

EPSS Score

8.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-25-114-01 CISA2 products fixed · 5 known affected

    Schneider Electric Modicon Controllers (Update A)

    Modicon M580 Firmware Versions prior to v2.90 installed on Modicon M580 Controller · Modicon M340 Firmware Versions prior to v3.10 installed on Modicon M340 Controller · Modicon Quantum Firmware All Versions installed on Modicon Quantum Controller

Full record on NVD

Description

A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a remote code execution by overwriting configuration settings of the controller over Modbus.

Technical details

Published
2019-05-22

Frequently asked questions

What is CVE-2019-6808?

A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a remote code execution by overwriting configuration settings of the controller over Modbus.

Is CVE-2019-6808 actively exploited?

Active exploitation of CVE-2019-6808 has not been confirmed. Its EPSS score was 8.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-6808?

CVE-2019-6808 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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