Security readout for executives and security teams
Plain-English summary
CVE-2026-22539 affects EFACEC QC 60/90/120 chargers running version 8. An unauthenticated service interaction over OCPP v1.6 can disclose charger information. The published severity is medium, with low confidentiality impact and no stated integrity or availability impact.
Executive priority
Treat as a medium-priority exposure-management issue for EV charging environments. Prioritize sites where chargers share networks with untrusted users or third parties, because the attack vector is adjacent rather than remote internet by default.
Technical view
The issue is classified as CWE-201, information exposure. The CVSS 4.0 vector is AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N, indicating adjacent-network access, low attack complexity, no privileges, no user interaction, and limited vulnerable-system confidentiality impact.
Likely exposure
Exposure appears limited to EFACEC QC 60/90/120 version 8 where OCPP v1.6 service interaction is reachable by an adjacent attacker. The source does not state internet exposure, cloud impact, or other affected versions.
Exploitation context
The CVE says an attacker with some protocol knowledge could obtain charger information without authentication. The record is not marked KEV, and the provided sources do not report active exploitation or public exploit availability.
Researcher notes
Evidence is sparse. The CVE names information disclosure via unauthenticated OCPP v1.6 interaction but does not describe disclosed fields, patch versions, workaround details, or proof-of-concept status. Avoid assuming broader product impact beyond EFACEC QC 60/90/120 version 8.
Mitigation direction
- Identify EFACEC QC 60/90/120 chargers running version 8.
- Review EFACEC or Thales guidance for vendor-approved remediation.
- Restrict OCPP service reachability to trusted management networks where possible.
- Monitor charger/OCPP access attempts for unauthenticated or unexpected service interactions.
Validation and detection
- Confirm charger model and firmware/version inventory.
- Verify whether OCPP v1.6 is enabled and reachable from adjacent networks.
- Check access controls around charger management and OCPP communications.
- Review logs for unexpected unauthenticated OCPP-related requests.
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-201: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2026-22539 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
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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:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://cds.thalesgroup.com/enCVE reference
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.
Insertion of Sensitive Information Into Sent Data
Insertion of Sensitive Information Into Sent Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.