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CVE-2023-49955

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 0.7%

Description

An issue was discovered in Dalmann OCPP.Core before 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles. It does not validate the length of the chargePointVendor field in a BootNotification message, potentially leading to server instability and a denial of service when processing excessively large inputs. NOTE: the vendor's perspective is "OCPP.Core is intended for use in a protected environment/network."

Affected

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

Open Charge Point Protocol· Dallmann Consulting
95%
v < 1.2.0
Affected range stops below 1.2.0, 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:

Patch and advisory references

References (1)

ExploitIssue TrackingVendor Advisory
Source: [email protected]
https://github.com/dallmann-consulting/OCPP.Core/issues/32

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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