CVE-2023-49957

HIGH
7.5
CVSS Score
Published: December 7, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:36 AM UTC
1 product affected across 1 vendorOpen Charge Point Protocol

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%

Description

An issue was discovered in Dalmann OCPP.Core before 1.3.0 for OCPP (Open Charge Point Protocol) for electric vehicles. It permits multiple transactions with the same connectorId and idTag, contrary to the expected ConcurrentTx status. This could result in critical transaction management and billing errors. NOTE: the vendor's perspective is "Imagine you've got two cars in your family and want to charge both in parallel on the same account/token? Why should that be rejected?"

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.3.0
Affected range stops below 1.3.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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