Security readout for executives and security teams
Plain-English summary
CVE-2026-27028 is a critical authentication failure in Mobility46 mobility46.se. An attacker may impersonate an EV charging station through WebSocket/OCPP connections and affect charging network data or control. The sources do not state that attacks are occurring in the wild.
Executive priority
Treat as urgent for any Mobility46-managed charging environment. Prioritize exposure reduction and vendor engagement because the vulnerability affects core charger trust and has a critical CVSS score. Do not assume active exploitation unless new authoritative sources confirm it.
Technical view
The issue is CWE-306, missing authentication for a critical function. OCPP WebSocket endpoints reportedly allow unauthenticated connections using a known or discovered station identifier, enabling charger impersonation and backend command/data manipulation. CVSS v3.1 is 9.4, network exploitable, low complexity, no privileges, no user interaction.
Likely exposure
Organizations using Mobility46 mobility46.se for EV charging infrastructure may be exposed, especially where OCPP WebSocket endpoints are reachable from untrusted networks. The source bundle lists “All versions,” but also includes an inconsistent default status, so exact affected scope needs vendor confirmation.
Exploitation context
The described attack requires network access to the OCPP WebSocket endpoint and a station identifier. Sources do not list public exploit code, active exploitation, or CISA KEV status. Business impact could include unauthorized charger control, corrupted operational records, and loss of trust in charging data.
Researcher notes
The public bundle identifies the flaw and CVSS but does not provide patch details. The affected metadata is internally inconsistent: “All versions” appears under affected, while defaultStatus says “unaffected.” Use CISA and vendor sources to resolve scope before final risk acceptance.
Mitigation direction
- Check CISA advisory ICSA-26-057-08 and Mobility46 guidance for vendor-approved remediation.
- Restrict OCPP WebSocket access to trusted networks until vendor guidance is applied.
- Require authentication and identity validation for charger-to-backend communications where supported.
- Review logs for unexpected station identifiers, duplicate charger sessions, or unusual OCPP activity.
- Contact Mobility46 for affected-version clarification and remediation status.
Validation and detection
- Inventory Mobility46 mobility46.se deployments and exposed OCPP WebSocket endpoints.
- Confirm whether endpoints require authentication before accepting charger sessions.
- Validate network controls restrict access to authorized chargers and management paths.
- Review backend records for station impersonation indicators or unexplained data changes.
- Document vendor response, patch status, and compensating controls.
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-2026-27028 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.