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CVE-2023-49958

20
FAUCET Score

CVE-2023-49958 affects Dalmann OCPP.Core through version 1.2.0, allowing an attacker to manipulate StartTransaction messages in the Open Charge Point Protocol (OCPP) by injecting additional or duplicate properties. This vulnerability, rated 7.5 HIGH, could lead to altered transaction records or impact system integrity due to the server accepting the last occurrence of a duplicate property. While no active exploitation, public exploit code, or significant community discussion has been observed, the direct network attack vector and low attack complexity make it a notable concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.0CPE matchmatch criteria
cpe:2.3:a:dallmann-consulting:open_charge_point_protocol:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 20th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / dallmann-consulting/OCPP.Core/issues/36
ExploitIssue TrackingVendor Advisory