CVE-2023-49722

Unauthenticated device access via exposed debug port

Published Jan 9, 2024 · Updated Jun 17, 2025

Exposed debug service in Bosch BCC101, BCC102, and BCC50 4.13.20 through 4.13.32 allows remote attackers on local Wi-Fi to connect. The Wi-Fi firmware leaves TCP port 8899 permanently listening even though Bosch identifies it as a Wi-Fi-module development debugging port. An attacker requires access to the same Wi-Fi network and no authentication; Bosch has not disclosed the debug protocol or the actions available after connection.

CVSS severity8.3
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Exposed debug service in Bosch BCC101, BCC102, and BCC50 4.13.20 through 4.13.32 allows remote attackers on local Wi-Fi to connect. The Wi-Fi firmware leaves TCP port 8899 permanently listening even though Bosch identifies it as a Wi-Fi-module development debugging port. An attacker requires access to the same Wi-Fi network and no authentication; Bosch has not disclosed the debug protocol or the actions available after connection.

The record

CVE
CVE-2023-49722
Published
Jan 9, 2024
Updated
Jun 17, 2025
Vendor
Robert Bosch GmbH
Product
Bosch Connected Control BCC50
Classifications
CWE-1125
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record 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=4.13.20 <v4.13.33

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Robert Bosch GmbH · Bosch Connected Control BCC50version=4.13.20 <v4.13.33
Robert Bosch GmbH · Bosch Connected Control BCC101version=4.13.20 <v4.13.33
Robert Bosch GmbH · Bosch Connected Control BCC102version=4.13.20 <v4.13.33

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.3Robert Bosch GmbHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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-1125Excessive Attack Surface

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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