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Code27 Companion Hub CVE-2026-36027

MEDIUM
Hardware Allows Activation of Test or Debug Logic at Runtime (CWE-1313)
2026-07-08 mitre
6.8
CVSS 3.1 · Vendor: mitre
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Severity by source

Vendor (mitre) PRIMARY
6.8 MEDIUM
AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
6.8 MEDIUM

Physical USB access is the sole prerequisite with no credentials needed; full C/I/A impact reflects arbitrary code execution achieving total device compromise.

3.1 AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Jul 08, 2026 - 22:39 vuln.today
CVSS changed
Jul 08, 2026 - 21:22 NVD
6.8 (MEDIUM)
CVE Published
Jul 08, 2026 - 00:00 cve.org
MEDIUM 6.8
CVE Published
Jul 08, 2026 - 00:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

An issue in Code27 Companion Hub SQ3A.220705.003.A1 allows a physically proximate attacker to execute arbitrary code via the USB debugging (ADB) and Android Debug Bridge components

AnalysisAI

Arbitrary code execution on Code27 Companion Hub (firmware SQ3A.220705.003.A1) is achievable by a physically proximate attacker through improper access controls on the device's USB debugging (ADB) interface. The Android Debug Bridge component fails to enforce adequate restrictions, allowing an unauthenticated attacker with physical USB access to execute arbitrary commands at elevated privilege. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Gain physical access to device
Delivery
Connect USB cable from attacker host
Exploit
Invoke ADB interface without pairing/auth
Execution
Issue arbitrary ADB shell commands
Impact
Achieve full code execution on device

Vulnerability AssessmentAI

Exploitation Physical proximity and USB connectivity to the device are the core prerequisites - this is an AV:P attack that cannot be executed remotely. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 6.8 with AV:P correctly reflects that physical access is a hard prerequisite, substantially containing the attack surface to scenarios involving stolen, unattended, or confiscated devices. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with physical access to a Code27 Companion Hub - such as one left unattended in an office, retail environment, or transportation scenario - connects a USB cable from their laptop and leverages the publicly available proof-of-concept from https://github.com/redr0nin/Code-27-Companion-Hub-Exploits to issue ADB commands without authentication. Because the device fails to enforce pairing or authorization checks on its debug interface, the attacker gains arbitrary code execution at an elevated privilege level, achieving full device compromise including data exfiltration and persistent implant installation.
Remediation The primary mitigation is to disable USB debugging (ADB) on all Code27 Companion Hub devices where it is not operationally required - this directly removes the exposed attack surface. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-36027 vulnerability details – vuln.today

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