How severe is CVE-2023-49958?

CVE-2023-49958 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-49958 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-49958?

CVE-2023-49958 affects Dallmann-consulting Open Charge Point Protocol. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-49958?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-49958 published?

CVE-2023-49958 was published on 2023-12-07 and last updated on 2026-06-17.

CVE-2023-49958

CVE-2023-49958 is a high-severity vulnerability in Dallmann-consulting Open Charge Point Protocol with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Dallmann-consulting Open Charge Point Protocol
Published: 2023-12-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-49958?: 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.
How severe is CVE-2023-49958?: CVE-2023-49958 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-49958 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-49958?: CVE-2023-49958 affects Dallmann-consulting Open Charge Point Protocol. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-49958?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-49958 published?: CVE-2023-49958 was published on 2023-12-07 and last updated on 2026-06-17.

References

https://github.com/dallmann-consulting/OCPP.Core/issues/36

Affected products (1)

cpe:2.3:a:dallmann-consulting:open_charge_point_protocol:*:*:*:*:*:*:*:*

More vulnerabilities in Dallmann-consulting Open Charge Point Protocol

CVE-2023-49957 — High (CVSS 7.5): An issue was discovered in Dalmann OCPP.Core before 1.3.0 for OCPP (Open Charge Point Protocol) for electric vehicles.…
CVE-2023-49956 — High (CVSS 7.5): An issue was discovered in Dalmann OCPP.Core before 1.3.0 for OCPP (Open Charge Point Protocol) for electric vehicles.…
CVE-2023-49955 — High (CVSS 7.5): An issue was discovered in Dalmann OCPP.Core before 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles.…

All CVEs affecting Dallmann-consulting Open Charge Point Protocol →

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