Is CVE-2019-6840 in the CISA KEV catalog?

No. CVE-2019-6840 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-6840?

CVE-2019-6840 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-6840?

CVE-2019-6840 has an EPSS score of 1.15% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-6840?

Upgrade meg6260-0410 firmware to 1.3.7 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2019-6840

CRITICAL

9.8

CVSS v3

NVD

Description

A Format String: CWE-134 vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow an attacker to send a crafted message to the target server, thereby causing arbitrary commands to be executed.

CWE-134

How to fix

Remediation Available

meg6260-0410 firmwareNVD

Affected:< 1.3.7Fixed in:1.3.7CVE-2019-6840derived from NVD

meg6260-0415 firmwareNVD

Affected:< 1.3.7Fixed in:1.3.7CVE-2019-6840derived from NVD

meg6501-0001 firmwareNVD

Affected:< 1.3.7Fixed in:1.3.7CVE-2019-6840derived from NVD

meg6501-0002 firmwareNVD

Affected:< 1.3.7Fixed in:1.3.7CVE-2019-6840derived 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

1.15%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Vendor Advisory1

schneider-electric.com

Related Vulnerabilities

Other CWE-134 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13160	Critical	9.8	81%	-	Fix
CVE-2023-22374	High	8.5	73%	-	-
CVE-2012-1851	High	10.0	66%	-	-
CVE-2024-23113	Critical	9.8	62%	KEV	-
CVE-2012-3569	High	9.3	48%	-	-
CVE-2018-6317	Critical	9.1	44%	-	-

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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.