Security readout for executives and security teams
Plain-English summary
CVE-2026-25851 affects Chargemap’s chargemap.com OCPP WebSocket handling. The reported issue is missing authentication, allowing someone who knows or discovers a charging station identifier to impersonate that station. Business risk is high because charging operations, backend data integrity, and potentially station control could be affected.
Executive priority
Treat as urgent for any organization relying on Chargemap-connected charging infrastructure. The issue could undermine trust in charging operations and data. Prioritize vendor engagement, exposure reduction, and monitoring while awaiting or confirming official remediation guidance.
Technical view
The vulnerability is CWE-306: Missing Authentication for Critical Function. The CVE states unauthenticated attackers can connect to OCPP WebSocket endpoints as a legitimate charger using a known or discovered station identifier, then issue or receive OCPP commands. CVSS is 9.4, network exploitable, low complexity, no privileges, no user interaction.
Likely exposure
Exposure is most relevant to Chargemap-operated or integrated OCPP charging infrastructure using chargemap.com WebSocket endpoints. The source bundle lists Chargemap chargemap.com and “All versions,” but does not provide environment-specific deployment details or compensating controls.
Exploitation context
The CVE describes remote unauthenticated access over network-exposed WebSocket endpoints. It does not cite public exploitation, and CISA KEV status is false in the provided bundle. Risk still warrants urgent review because authentication is absent for a critical charging-infrastructure function.
Researcher notes
Evidence is limited to the CVE summary, CVSS vector, affected product metadata, and advisory references. No exploit proof, patch version, or detailed vendor mitigation is included in the provided bundle. Avoid assuming broader Chargemap products are affected without advisory confirmation.
Mitigation direction
- Check Chargemap and CISA advisory pages for current vendor guidance and updates.
- Restrict network access to OCPP WebSocket endpoints where operationally possible.
- Review station identifier handling and avoid relying on identifiers as authentication.
- Monitor backend charging data for unexpected station behavior or command activity.
- Engage Chargemap support for remediation status and recommended compensating controls.
Validation and detection
- Inventory systems integrated with Chargemap OCPP WebSocket endpoints.
- Confirm whether station authentication is enforced before OCPP command exchange.
- Review logs for unknown clients using legitimate charging station identifiers.
- Check for anomalous OCPP messages, station impersonation indicators, or data inconsistencies.
- Track CVE and CISA advisory updates for patched versions or mitigations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-25851 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L3.95.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.4CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.