PatchSiren cyber security CVE debrief

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: 2026-07-22
Advisory published: 2026-07-21
Advisory updated: 2026-07-22

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.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T21:16:54.837Z and has not been modified since then. The NVD entry is currently Awaiting Analysis.