Critical severity · published Jul 21, 2026
CVE-2026-8983
Backdoor Authentication Token
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
MaxiCharger Single · Autel
through V1.03.51 · source: vendor
MS
Maxicharger Single Charger Firmware · Autel
through 1.03.51; through 1.03.51 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8983
Exploit
https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/
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Hard-coded / Backdoor Accounts