CVE-2026-37100

Unauthorized device control via unauthenticated BLE connection

Published Apr 16, 2026 · Updated Apr 16, 2026

Improper access control in Yamaha SR-B30A firmware 1.03 allows remote attackers to send sound-bar commands over unauthenticated BLE. The BLE control interface accepts connections and operational commands without authentication, authorization, or pairing. Attackers must be within about 10–30 meters; they can change volume or hold a persistent connection that blocks the official mobile application.

CVSS severity6.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Yamaha SR-B30A firmware 1.03 allows remote attackers to send sound-bar commands over unauthenticated BLE. The BLE control interface accepts connections and operational commands without authentication, authorization, or pairing. Attackers must be within about 10–30 meters; they can change volume or hold a persistent connection that blocks the official mobile application.

The record

CVE
CVE-2026-37100
Published
Apr 16, 2026
Updated
Apr 16, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-284Improper Access Control
T1499Endpoint Denial of Service

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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