Security readout for executives and security teams
Plain-English summary
CVE-2026-24445 is a high-severity weakness in ev.energy’s WebSocket API. The API reportedly does not limit repeated authentication attempts, which can enable service disruption affecting charger telemetry or allow brute-force attempts against access controls.
Executive priority
Treat as a near-term operational resilience issue for EV charging environments. Prioritize exposure review and vendor guidance because the stated impact includes disruption to legitimate charger telemetry and possible unauthorized access attempts.
Technical view
The issue is CWE-307: improper restriction of excessive authentication attempts. CVSS 4.0 score is 8.7. The vector indicates network access, low complexity, no privileges, no user interaction, and high availability impact. The source bundle lists EV Energy ev.energy “All versions,” but also includes conflicting default status metadata.
Likely exposure
Organizations using EV Energy ev.energy services or integrations that depend on the WebSocket API may be exposed, especially where authentication endpoints are reachable from untrusted networks.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The described risk is practical because unauthenticated network attempts could cause denial of service or support brute-force activity if controls are absent.
Researcher notes
Avoid assuming patch status from the supplied data. The affected entry says “All versions,” while default status says “unaffected,” so confirm against the CISA CSAF and vendor advisory. No exploit details or active exploitation evidence were provided.
Mitigation direction
- Review EV Energy and CISA advisory guidance for vendor-approved fixes or compensating controls.
- Restrict access to ev.energy WebSocket interfaces to trusted networks where possible.
- Monitor authentication attempt volume, failures, and charger telemetry anomalies.
- Apply rate limiting or upstream throttling only if supported and tested.
- Prepare operational fallback plans for charger telemetry disruption.
Validation and detection
- Inventory ev.energy deployments, integrations, and exposed WebSocket endpoints.
- Confirm whether affected WebSocket authentication paths are reachable externally.
- Check logs for repeated authentication attempts and telemetry misrouting symptoms.
- Verify any vendor patch, configuration change, or advisory recommendation is applied.
- Document compensating controls and residual operational risk.
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-307: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2026-24445 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
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ev.energy/en-usCVE reference
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-07CVE reference
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-07.jsonCVE 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.
Improper Restriction of Excessive Authentication Attempts
Improper Restriction of Excessive Authentication Attempts represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.