Is CVE-2023-49955 in the CISA KEV catalog?

No. CVE-2023-49955 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-49955?

CVE-2023-49955 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-49955?

CVE-2023-49955 has an EPSS score of 0.71% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-49955?

Upgrade open charge point protocol to 1.2.0 or later.

CVE & CISA-KEV Catalog

CVE-2023-49955

HIGH

7.5

CVSS v3

NVD

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."

How to fix

Remediation Available

open charge point protocolNVD

Affected:< 1.2.0Fixed in:1.2.0CVE-2023-49955derived 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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.71%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Exploit1

github.com

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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.