CVE-2026-8988 (GCVE-0-2026-8988)

Vulnerability from cvelistv5 – Published: 2026-07-21 21:21 – Updated: 2026-07-22 19:37
VLAI
Title
Access to Bootloader
Summary
Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access.
Severity
8.6 (High)
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-1191 - On-Chip debug and test interface with improper access control
Assigner
References
URL Tags
https://cyberdanube.com/security-research/multipl… third-party-advisoryexploit
Impacted products
Vendor Product Version
Autel MaxiCharger Single Affected: 0 , ≤ V1.03.51 (custom)
Create a notification for this product.
Credits
S. Eisenreich-Dietz (CyberDanube) T. Weber (CyberDanube) D. Blagojevic (CyberDanube) F. Koroknai (CyberDanube)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-8988",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-22T19:17:35.198640Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-22T19:37:20.155Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MaxiCharger Single",
          "vendor": "Autel",
          "versions": [
            {
              "lessThanOrEqual": "V1.03.51",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "S. Eisenreich-Dietz (CyberDanube)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "T. Weber (CyberDanube)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "D. Blagojevic (CyberDanube)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "F. Koroknai (CyberDanube)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access."
            }
          ],
          "value": "Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-1",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "PHYSICAL",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1191",
              "description": "CWE-1191 On-Chip debug and test interface with improper access control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-21T21:21:50.327Z",
        "orgId": "7d092a75-6bbd-48c6-a15a-0297458009bc",
        "shortName": "CyberDanube"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory",
            "exploit"
          ],
          "url": "https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Access to Bootloader",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d092a75-6bbd-48c6-a15a-0297458009bc",
    "assignerShortName": "CyberDanube",
    "cveId": "CVE-2026-8988",
    "datePublished": "2026-07-21T21:21:50.327Z",
    "dateReserved": "2026-05-19T13:13:00.389Z",
    "dateUpdated": "2026-07-22T19:37:20.155Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-8988",
      "date": "2026-07-22",
      "epss": "0.00146",
      "percentile": "0.0436"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-8988\",\"sourceIdentifier\":\"office@cyberdanube.com\",\"published\":\"2026-07-21T22:19:11.270\",\"lastModified\":\"2026-07-22T20:17:09.633\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access.\"}],\"affected\":[{\"source\":\"office@cyberdanube.com\",\"affectedData\":[{\"vendor\":\"Autel\",\"product\":\"MaxiCharger Single\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"V1.03.51\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"office@cyberdanube.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:P/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\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"HIGH\",\"subAvailabilityImpact\":\"HIGH\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-22T19:17:35.198640Z\",\"id\":\"CVE-2026-8988\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"office@cyberdanube.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1191\"}]}],\"references\":[{\"url\":\"https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/\",\"source\":\"office@cyberdanube.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"7d092a75-6bbd-48c6-a15a-0297458009bc\", \"shortName\": \"CyberDanube\", \"dateUpdated\": \"2026-07-21T21:21:50.327Z\"}, \"title\": \"Access to Bootloader\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-1191\", \"description\": \"CWE-1191 On-Chip debug and test interface with improper access control\", \"type\": \"CWE\"}]}], \"impacts\": [{\"capecId\": \"CAPEC-1\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs\"}]}], \"affected\": [{\"vendor\": \"Autel\", \"product\": \"MaxiCharger Single\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThanOrEqual\": \"V1.03.51\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"Autel Maxi Charger Single firmware through V1.03.51 exposes an accessible UART interface that permits interruption of the boot process and access to the U-Boot bootloader. An attacker with physical access can modify the boot configuration or file system to obtain operating system access.\"}]}], \"references\": [{\"url\": \"https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger/\", \"tags\": [\"third-party-advisory\", \"exploit\"]}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV4_0\": {\"attackVector\": \"PHYSICAL\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\", \"subIntegrityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"HIGH\", \"exploitMaturity\": \"NOT_DEFINED\", \"Safety\": \"NOT_DEFINED\", \"Automatable\": \"NOT_DEFINED\", \"Recovery\": \"NOT_DEFINED\", \"valueDensity\": \"NOT_DEFINED\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"version\": \"4.0\", \"baseSeverity\": \"HIGH\", \"baseScore\": 8.6, \"vectorString\": \"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H\"}}], \"credits\": [{\"lang\": \"en\", \"value\": \"S. Eisenreich-Dietz (CyberDanube)\", \"type\": \"finder\"}, {\"lang\": \"en\", \"value\": \"T. Weber (CyberDanube)\", \"type\": \"finder\"}, {\"lang\": \"en\", \"value\": \"D. Blagojevic (CyberDanube)\", \"type\": \"finder\"}, {\"lang\": \"en\", \"value\": \"F. Koroknai (CyberDanube)\", \"type\": \"finder\"}], \"source\": {\"discovery\": \"EXTERNAL\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-8988\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-22T19:17:35.198640Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-22T19:17:44.794Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-8988\", \"assignerOrgId\": \"7d092a75-6bbd-48c6-a15a-0297458009bc\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"CyberDanube\", \"dateReserved\": \"2026-05-19T13:13:00.389Z\", \"datePublished\": \"2026-07-21T21:21:50.327Z\", \"dateUpdated\": \"2026-07-22T19:37:20.155Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.