CVE-2023-49958

Name: CVE-2023-49958
Creator: NVD / NIST
Published: 2023-12-07T13:15:07.833+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2023-49958 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Dalmann OCPP.Core through 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles. The server processes mishandle StartTransaction messages containing additional, arbitrary properties, or duplicate properties. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

An issue was discovered in Dalmann OCPP.Core through 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles. The server processes mishandle StartTransaction messages containing additional, arbitrary properties, or duplicate properties. The last occurrence of a duplicate property is accepted. This could be exploited to alter transaction records or impact system integrity.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.56%

42.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Dallmann-Consulting	Open Charge Point Protocol	<= 1.2.0

References

https://github.com/dallmann-consulting/OCPP.Core/issues/36Exploit, Issue Tracking, Vendor Advisory
https://github.com/dallmann-consulting/OCPP.Core/issues/36Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Dec 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49958?

How severe is CVE-2023-49958?

CVE-2023-49958 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49958?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49958?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST