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Evoke CSMS CVE-2026-44622

| EUVDEUVD-2026-39564 MEDIUM
Insufficiently Protected Credentials (CWE-522)
2026-06-25 icscert GHSA-mr33-r399-w43m
6.9
CVSS 4.0 · Vendor: icscert
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Attack ChainAIDerived

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

  1. Access
    Access public EV station mapping platform
  2. Delivery
    Query or scrape station listing data
  3. Exploit
    Harvest exposed authentication identifiers
  4. Execution
    Submit identifiers to Evoke CSMS or charge point
  5. Persist
    Authenticate as trusted charge point
  6. Impact
    Initiate unauthorized charging session

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V6 - Authentication Credential protection in transit/storage
Exploitation Conditions

Evoke CSMS must be integrated with one or more public web-based mapping platforms that surface authentication identifier fields in their externally accessible station data - this integration is the specific, concrete configuration condition driving the exposure. Deployments of Evoke CSMS that are not connected to any public-facing mapping service would not expose identifiers through this vector. Exploitation requires no authentication, no special tools, and no access to the CSMS itself - only access to the public mapping platform. What limits exploitation: the flaw is scoped to operators who have enabled public mapping integrations with Evoke CSMS; the exploitable impact is bounded by what those harvested identifiers can authorize within the EV charging ecosystem; and the attacker must know which mapping platform is receiving identifier data from the target deployment.

Impact

The CVSS 3.1 score of 6.5 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N reflects trivially accessible, unauthenticated exposure requiring no complexity or user interaction, while the S:U, C:L, and I:L components constrain the overall impact rating. No EPSS data was provided in the input, and this CVE is not listed in CISA KEV, meaning widespread or confirmed active exploitation is unconfirmed. No public exploit code has been identified. Despite the moderate CVSS score, the ICS-CERT reporting context elevates the real-world concern: EV charging infrastructure falls within energy critical infrastructure, and exposed authentication identifiers could enable fraudulent session authorization or charge point impersonation beyond simple data observation. The I:L component in the provided CVSS vector warrants explicit vendor clarification - if the identifiers are display-only artifacts that cannot be replayed or submitted to the CSMS, integrity impact may be overstated; if they can authenticate to the CSMS backend or to individual charge points, I:L is justified. This is a structural credential exposure issue rather than an imminent remote exploit scenario.

Exploit ScenarioDerived

An attacker accesses a public web-based EV charging station mapping platform and queries or scrapes the station listing data for a target Evoke CSMS deployment, extracting exposed authentication identifiers without any authentication or special tooling. Using those harvested identifiers, the attacker could potentially submit them to the Evoke CSMS backend or individual charge points to authenticate as a trusted entity, enabling unauthorized charging session initiation or manipulation of authorization records. No exploit code has been publicly identified, and execution requires only internet access and knowledge of the mapping platform surfacing the data.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 25, 2026

Evoke CSMS exposes charging station authentication identifiers through public web-based mapping platforms, allowing unauthenticated network actors to harvest credentials with no special access or interaction. Classified under CWE-522 (Insufficiently Protected Credentials) and reported by ICS-CERT via advisory ICSA-26-176-02, this flaw affects all tracked versions of the Evoke Charging Station Management System across its entire version history per the wildcard CPE. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code has been identified, but the zero-prerequisite exposure in an OT/energy infrastructure context represents a meaningful credential leakage risk for affected operators.

RemediationAI

No vendor-released patch version was identified in the available data. Operators should consult the CISA ICS advisory ICSA-26-176-02 at https://www.cisa.gov/news-events/ics-advisories/icsa-26-176-02 and the CSAF file at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-176-02.json for authoritative remediation guidance and any patch release. As immediate compensating controls, operators should audit which authentication identifier fields are shared with third-party mapping platform integrations and disable or restrict those integrations where possible - note this trade-off reduces station discoverability for end users. Any authentication identifiers confirmed to have been publicly exposed should be rotated or revoked where the CSMS and charge point hardware architecture permits, though this may require coordinated updates across deployed charging units. Outbound data-sharing configurations to mapping APIs should be reviewed and locked down to the minimum required fields. Contact Evoke Systems directly at https://evokesystems.com/contact-us/ to obtain patched software or additional vendor-specific mitigation guidance.

Affected VersionsENISA

EVoke CSMS All versions

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Technical ContextAI · show details

Evoke CSMS is a Charging Station Management System used to manage electric vehicle charging infrastructure, typically operating over the Open Charge Point Protocol (OCPP) or comparable protocols. Authentication identifiers in this context can include charge point IDs, RFID authorization tokens, or session keys used to validate and authorize EV charging sessions between the CSMS and individual charge points. CWE-522 (Insufficiently Protected Credentials) describes the root cause: these identifiers are surfaced through web-based mapping platforms that aggregate and publicly display EV charging station data, making them accessible to any internet user without authentication. The CPE string cpe:2.3:a:evoke:evoke_csms:*:*:*:*:*:*:*:* carries a full wildcard on version, indicating the issue is likely architectural - tied to how the CSMS integrates with external mapping services - rather than limited to a discrete code revision.

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Severity by source

Vendor (icscert) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
vuln.today AI 5.3 MEDIUM

Public mapping platform exposure requires no privileges or interaction; direct integrity impact is not confirmed by description alone, so I:N is assessed pending vendor clarification.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (icscert).

CVSS VectorVendor: icscert

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
Low
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
CVSS changed
Jun 25, 2026 - 22:22 NVD
6.5 (MEDIUM) 6.9 (MEDIUM)

DescriptionCVE.org

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

Threat Intelligence Overview

EPSS Score
0.2%
Top 84% exploitable
Prevalence
Low
niche EV charging management vendor, limited enterprise footprint
Threat Intel
1
1 sources
Social Media
2
Sightings
Data Quality
7 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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
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

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

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: +10
Gov advisory: 0

Attack Technique

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

Threat IntelligenceMISP

CISA Advisories
Sources: CISA (public domain), CISA Vulnrichment

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