Is CVE-2019-6808 in the CISA KEV catalog?

No. CVE-2019-6808 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-6808?

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

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

CVE-2019-6808 has an EPSS score of 8.16% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-6808?

Upgrade modicon m340 firmware to 3.10 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-6808

CRITICALEPSS 94th pctl

9.8

CVSS v3

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.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

modicon m340 firmwareNVD

Affected:< 3.10Fixed in:3.10CVE-2019-6808derived from NVD

modicon m580 firmwareNVD

Affected:< 2.90Fixed in:2.90CVE-2019-6808derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

8.16%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Exploit1

talosintelligence.com

Vendor Advisory1

schneider-electric.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.