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Home Flex EUVDEUVD-2026-21639

| CVE-2026-4155 HIGH
Inclusion of Sensitive Information in Source Code (CWE-540)
2026-04-11 zdi GHSA-69j2-hc78-98c7
7.5
CVSS 3.0 · Vendor: zdi
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Discover ChargePoint Home Flex device remotely
  2. Delivery
    Access genpw script source code
  3. Exploit
    Extract hardcoded cryptographic seed
  4. Execution
    Derive stored credentials
  5. Impact
    Compromise charging station

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Source code protection
Exploitation Conditions

Remote unauthenticated attacker accessing ChargePoint Home Flex charging station with exposed genpw script containing hardcoded cryptographic seed. No authentication or user interaction required. Affects default installations where the script is accessible over the network.

Impact

High-severity unauthenticated information disclosure affecting ChargePoint Home Flex charging stations. Hardcoded cryptographic seed in genpw script enables remote attackers to extract stored credentials without authentication, creating cascading compromise risk. CVSS 7.5 reflects high confidentiality impact and network accessibility. Priority depends on deployment density and credential sensitivity in affected environments.

Exploit ScenarioDerived

Attacker retrieves hardcoded secret seed from publicly accessible genpw script over network (AV:N, AC:L, PR:N), derives stored credential decryption keys, and gains unauthorized access to charging infrastructure or associated accounts. No public exploit identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 11, 2026

Hardcoded cryptographic seed disclosure in ChargePoint Home Flex charging stations enables unauthenticated remote attackers to extract stored credentials via the genpw script. The vulnerability exposes a secret seed value embedded directly in source code, allowing attackers to decrypt or regenerate passwords for further system compromise. No public exploit identified at time of analysis. CVSS 7.5 (High) reflects unauthenticated network access with high confidentiality impact.

RemediationAI

No vendor-released patch identified at time of analysis. Primary mitigation requires ChargePoint to release firmware update removing hardcoded seed and implementing secure random seed generation per cryptographic best practices. Interim workarounds: (1) isolate affected charging stations on dedicated network segment with strict firewall rules blocking unauthorized remote access; (2) monitor network traffic for abnormal credential access patterns; (3) implement network-level authentication (802.1X) if supported; (4) disable remote management features until patch deployment. Consult ZDI advisory for disclosure timeline and vendor coordination status: https://www.zerodayinitiative.com/advisories/ZDI-26-195/. Organizations should contact ChargePoint support for patch availability and apply updates immediately upon release.

Affected VersionsENISA

Home Flex 5.5.4.13

Affected Packages

euvd home_flex no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-540 violation: genpw script contains hardcoded cryptographic seed value used for credential generation/derivation. Deterministic seed enables attackers to reproduce cryptographic operations, effectively reversing password protection mechanisms. CVSS vector AV:N/AC:L/PR:N indicates remotely accessible code with no complexity barriers.

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Severity by source

Vendor (zdi) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (zdi) · only source for this CVE.

CVSS VectorVendor: zdi

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

ChargePoint Home Flex Inclusion of Sensitive Information in Source Code Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of ChargePoint Home Flex charging stations. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the genpw script. The issue results from the inclusion of a secret cryptographic seed value within the script. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-26340.

Executive ViewAI

Why It Matters

ChargePoint Home Flex charging stations contain hardcoded cryptographic seeds that allow unauthenticated attackers to extract stored credentials remotely, potentially compromising facility access and payment systems. Organizations operating these devices face credential theft and lateral movement risks without authentication barriers. Immediate inventory and network isolation are required pending vendor remediation.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict network access to charging station management interfaces via firewall/VPN; (2) Implement network segmentation to isolate charging stations from critical infrastructure; (3) Disable remote management features if operationally feasible; (4) Monitor for suspicious authentication attempts on connected systems; (5) Rotate and strengthen passwords on any systems that depend on charging station credentials; (6) Enable logging and alerting on charging station API calls.

Threat Intelligence Overview

EPSS Score
0.2%
Top 53% exploitable
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High

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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

Related Vulnerabilities in ChargePoint Home Flex Multiple Flaws

View all 3

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