CVE-2026-1354

Malicious firmware upload via unauthenticated Bluetooth pairing

Published Apr 21, 2026 · Updated Apr 21, 2026

Key exchange without entity authentication in Zero Motorcycles Firmware 44 and earlier allows physically proximate attackers to pair over Bluetooth. The Bluetooth pairing flow accepts a device key exchange without authenticating the device identity, then exposes over-the-air firmware update functions. Exploitation requires pairing mode, knowledge of the full pairing process, and sustained proximity throughout the update, enabling malicious firmware upload.

CVSS severity5.9
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Key exchange without entity authentication in Zero Motorcycles Firmware 44 and earlier allows physically proximate attackers to pair over Bluetooth. The Bluetooth pairing flow accepts a device key exchange without authenticating the device identity, then exposes over-the-air firmware update functions. Exploitation requires pairing mode, knowledge of the full pairing process, and sustained proximity throughout the update, enabling malicious firmware upload.

The record

CVE
CVE-2026-1354
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Zero Motorcycles
Product
Zero Motorcycles Firmware
Classifications
CWE-322
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=44

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Zero Motorcycles · Zero Motorcycles Firmwareversion=0 <=44

Published CVSS scores

5.9ICS-CERTCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
6.4ICS-CERTCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-322Key Exchange without Entity Authentication

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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