What is the CVSS score of EUVD-2026-13850?

EUVD-2026-13850 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate EUVD-2026-13850?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Chargeportal EUVD-2026-13850

| CVE-2026-28204 MEDIUM

Insufficiently Protected Credentials (CWE-522)

2026-03-20 icscert

Information Disclosure Chargeportal Ctek

6.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-522 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V6 - Authentication Credential protection in transit/storage
Impact	The CVSS 3.1 score of 6.5 with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N indicates a medium-severity vulnerability with moderate real-world risk. The network attack vector (AV:N) and low attack complexity (AC:L) with no privilege requirements (PR:N) mean any unauthenticated attacker on the internet can exploit this by accessing public mapping platforms. The integrity impact (I:L) combined with confidentiality impact (C:L) suggests attackers can both read credentials and potentially modify charging station behavior, though availability is not directly impacted. The ICS-CERT reporting source and official CISA advisory (ICSA-26-078-06) indicate this is a recognized infrastructure security concern. While the vulnerability requires passive reconnaissance (accessing public maps) rather than active exploitation techniques, the combination of critical infrastructure impact, public accessibility, and credential exposure elevates practical risk beyond the numerical CVSS score, particularly given the infrastructure sensitivity of EV charging networks.
Exploit ScenarioDerived	An attacker discovers CTEK charging stations listed on public mapping platforms and extracts exposed authentication identifiers directly from the platform's data or through automated scraping. Using these credentials, the attacker gains unauthorized access to the ChargePortal management interface to monitor charging activity, redirect billing, or disable specific charging stations. The low complexity and network accessibility mean this requires only basic reconnaissance skills and internet access, making it feasible for opportunistic attackers or competitors seeking to disrupt EV charging infrastructure.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 20, 2026

Authentication identifiers for electric vehicle charging stations are publicly exposed through web-based mapping platforms, allowing unauthenticated network-based access to sensitive authentication data. The vulnerability affects CTEK ChargePortal and enables attackers to obtain charging station credentials without requiring any privileges or user interaction. This information disclosure can lead to unauthorized access to charging infrastructure and potential manipulation of charging sessions.

RemediationAI

Immediately contact CTEK support (https://www.ctek.com/support) to obtain and deploy the latest patched version of ChargePortal that implements proper credential protection and removes authentication identifiers from public mapping platform integration. As an interim measure, restrict the visibility of charging station metadata in any public-facing mapping services by disabling automated indexing, implementing authentication requirements for map access, and auditing current exposure through search engine caches and mapping platform APIs. Implement network segmentation to limit direct access to ChargePortal administration interfaces, enforce API authentication with strong tokens that are regularly rotated, and enable encryption for all credential storage. Review and revoke any authentication identifiers that may have been exposed through mapping platforms, and monitor charging station access logs for unauthorized connection attempts.

Affected VersionsENISA

Chargeportal All versions

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Technical ContextAI · show details

The vulnerability stems from CWE-522 (Insufficiently Protected Credentials), where authentication identifiers that should remain confidential are inadvertently exposed through public-facing web-based mapping services. CTEK ChargePortal (cpe:2.3:a:ctek:chargeportal:*:*:*:*:*:*:*:*) is the affected product, which serves as a management and monitoring system for EV charging stations. The root cause involves improper credential storage or transmission mechanisms that allow these identifiers to be scraped, indexed, or otherwise harvested from mapping platforms without encryption or access controls. The mapping integration likely exposes station metadata including authentication tokens or credentials that should be restricted to authorized personnel only.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

DescriptionCVE.org

Charging station authentication identifiers are publicly accessible via web-based mapping platforms.

Executive ViewAI

Why It Matters

CVE-2026-28204 presents notable security risk rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.0%

Top 87% exploitable

Threat Intel

1 source

Data Quality

7 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment CISA

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat Yes

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation

None

System Exposure· derived

Open

Automatable

Yes

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: +10

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.