Is CVE-2019-6829 in the CISA KEV catalog?

No. CVE-2019-6829 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-6829?

CVE-2019-6829 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-6829?

CVE-2019-6829 has an EPSS score of 1.61% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-6829?

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

CVE & CISA-KEV Catalog

CVE-2019-6829

HIGHEPSS 73th pctl

7.5

CVSS v3

NVD

Description

A CWE-248: Uncaught Exception vulnerability exists in Modicon M580 (firmware version prior to V2.90) and Modicon M340 (firmware version prior to V3.10), which could cause a possible denial of service when writing to specific memory addresses in the controller over Modbus.

CWE-248 CWE-755

How to fix

Remediation Available

modicon m340 firmwareNVD

Affected:< 3.10Fixed in:3.10CVE-2019-6829derived from NVD

modicon m580 firmwareNVD

Affected:< 2.90Fixed in:2.90CVE-2019-6829derived 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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.61%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory1

schneider-electric.com

Embed a live status badge for CVE-2019-6829

Markdown

[![CVE-2019-6829](https://tridentstack.com/cve/badge/CVE-2019-6829.svg)](https://tridentstack.com/cve/CVE-2019-6829)

HTML

<a href="https://tridentstack.com/cve/CVE-2019-6829"><img src="https://tridentstack.com/cve/badge/CVE-2019-6829.svg" alt="CVE-2019-6829"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-05-29.