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CVE-2026-8983 Autel CVE debrief

CVE-2026-8983 Autel Maxi Charger Single firmware through V1.03.51 contains a hard-coded authentication token that bypasses authorization checks for multiple management endpoints. An attacker can supply the special token value to invoke privileged functionality without valid authentication. This vulnerability has a CVSS score of 10 and is classified as CRITICAL. Users should verify their systems are updated to the latest version and restrict access to management endpoints.

Vendor
Autel
Product
MaxiCharger Single
CVSS
CRITICAL 10
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-08-12
Advisory published
2026-07-21
Advisory updated
2026-08-12

Who should care

Users of Autel Maxi Charger Single firmware through V1.03.51 should verify their systems are updated to the latest version and restrict access to management endpoints. Operators, administrators, and security teams responsible for managing and securing Autel Maxi Charger Single firmware deployments should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The Autel Maxi Charger Single firmware through V1.03.51 contains a hard-coded authentication token. This token allows an attacker to bypass authorization checks for multiple management endpoints, enabling them to invoke privileged functionality without valid authentication. The vulnerability has a CVSS score of 10 and is classified as CRITICAL. Users of Autel Maxi Charger Single firmware should take immediate action to secure their systems.

Defensive priority

High priority should be given to updating Autel Maxi Charger Single firmware to a version that does not contain the hard-coded authentication token. Immediate action is necessary to prevent exploitation of this critical vulnerability.

Recommended defensive actions

  • Update Autel Maxi Charger Single firmware to the latest version
  • Restrict access to management endpoints
  • Monitor for suspicious activity on management endpoints
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-21T21:16:54.837Z and was last modified on 2026-07-22T20:17:09.050Z. The NVD entry is currently Awaiting Analysis. The Autel Maxi Charger Single firmware through V1.03.51 contains a hard-coded authentication token that bypasses authorization checks for multiple management endpoints. Evidence is limited to CVE and NVD information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-8983 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-8983

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-8983 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-8983

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.