Security readout for executives and security teams
Plain-English summary
Chargemap’s chargemap.com WebSocket API may allow unlimited authentication attempts. An attacker could overload or interfere with charger telemetry, potentially disrupting operational visibility, or attempt password guessing. The published severity is high. The provided sources do not state that exploitation is occurring or that a patch is available.
Executive priority
Treat as a high-priority vendor exposure review if Chargemap supports your charging operations. The main business risk is telemetry disruption and possible unauthorized access attempts. Prioritize confirmation of exposure, vendor status, and monitoring rather than emergency patching unless Chargemap or CISA publishes a fix.
Technical view
CVE-2026-20792 is CWE-307: improper restriction of excessive authentication attempts in the chargemap.com WebSocket API. CVSS 4.0 is 8.7, with network access, low complexity, no privileges, and high availability impact. The record describes possible telemetry suppression or misrouting and brute-force access attempts.
Likely exposure
Exposure is relevant to organizations using Chargemap services or integrations that depend on chargemap.com WebSocket authentication or charger telemetry. The bundle lists Chargemap chargemap.com as affected, with “All versions,” but also includes a conflicting default status of “unaffected,” so confirm directly with vendor guidance.
Exploitation context
The issue is remotely reachable and unauthenticated according to the CVSS vector. The provided sources do not indicate active exploitation, and the CVE is not listed as KEV in the bundle. Abuse would likely target authentication volume, availability of telemetry, or credential guessing.
Researcher notes
Evidence is limited to the CVE description and referenced advisory sources. No exploit publication, KEV listing, or specific patch is stated in the supplied bundle. The affected-version metadata appears inconsistent, so validation should focus on vendor confirmation and environment-specific Chargemap usage.
Mitigation direction
- Check Chargemap support and CISA advisory pages for current vendor remediation guidance.
- Ask Chargemap whether your tenant or integration is affected and what controls are available.
- Monitor authentication failures and unusual WebSocket traffic volumes tied to Chargemap integrations.
- Review operational dependency on Chargemap telemetry and prepare fallback monitoring procedures.
- Avoid assuming a patch exists unless vendor or CISA guidance confirms one.
Validation and detection
- Inventory systems, applications, and operations using Chargemap or chargemap.com telemetry.
- Confirm whether integrations use the chargemap.com WebSocket API.
- Review logs for abnormal authentication attempts or failed login spikes.
- Check whether telemetry gaps correlate with authentication or WebSocket anomalies.
- Track the CISA advisory and CVE record for updates or corrected affected-version data.
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-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-2026-20792 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
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.