CVE-2022-47648

Control-panel access via reused IP authorization

Published Feb 8, 2023 · Updated Jul 23, 2025

Improper access control in Bosch B420 Ethernet Communication Module all versions allows remote attackers to access its control panel. The module authorizes requests by source IP, so an attacker on the same network inherits a valid user's authorization after that user signs in. Reachability requires adjacent network access and a prior legitimate login from the relevant IP; Bosch states that the module cannot directly access the alarm-panel bus.

CVSS severity7.6
High
EPSS probability0.43%
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 Bosch B420 Ethernet Communication Module all versions allows remote attackers to access its control panel. The module authorizes requests by source IP, so an attacker on the same network inherits a valid user's authorization after that user signs in. Reachability requires adjacent network access and a prior legitimate login from the relevant IP; Bosch states that the module cannot directly access the alarm-panel bus.

The record

CVE
CVE-2022-47648
Published
Feb 8, 2023
Updated
Jul 23, 2025
Vendor
Bosch Security Systems B.V.
Product
B420 Ethernet Communication Module
Classifications
CWE-284, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 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=All Versions

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Bosch Security Systems B.V. · B420 Ethernet Communication Moduleversion=All Versions

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.6Robert Bosch GmbHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/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-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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