{"id":"CVE-2026-8983","aliases":["EUVD-2026-46432","GHSA-hmfc-f829-2xf3"],"status":"published","title":"Backdoor Authentication Token","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.","severity":{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00687,"percentile":0.5301,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2026-07-21T21:03:22Z","modified":"2026-10-24T19:10:00Z","products":[{"vendor":"autel","product":"maxicharger single"},{"vendor":"autel","product":"maxicharger_single_charger_firmware"}],"references":[{"url":"https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/","tags":["third-party-advisory","exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8983"},{"url":"https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger"},{"url":"https://github.com/advisories/GHSA-hmfc-f829-2xf3"}],"sources":{"cve":[{"id":"CVE-2026-8983","title":"Backdoor Authentication Token","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.","status":"published","published":"2026-07-21T21:03:22.675Z","modified":"2026-07-22T19:40:28.831Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T13:48:13.398044Z"}],"euvd":[{"id":"EUVD-2026-46432","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.","status":"published","published":"2026-07-21T21:03:22Z","modified":"2026-07-22T19:40:28Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T18:19:44.433437Z"}],"ghsa":[{"id":"GHSA-hmfc-f829-2xf3","title":"Autel Maxi Charger Single firmware through V1.03.51 contains a hard-coded authentication token...","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.","status":"published","published":"2026-07-21T21:32:44Z","modified":"2026-08-12T15:30:28Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T15:10:22.744469Z"}],"nvd":[{"id":"CVE-2026-8983","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.","status":"published","published":"2026-07-21T21:16:54.837Z","modified":"2026-10-24T19:10:00.127Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:12:31.394335Z"}]}}