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Pra Es8p2s FirmwareOperating system · Bosch

CVE-2022-32535

CRITICAL · 9.8 CVSS v3.1 Published 2022-06-23
Fix available
A fix is available. Upgrade to after 1.01.05 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Bosch Ethernet switch PRA-ES8P2S with software version 1.01.05 runs its web server with root privilege. In combination with CVE-2022-23534 this could give an attacker root access to the switch.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

The Bosch PRA-ES8P2S Ethernet switch runs its web server with root privileges. When combined with CVE-2022-23534 (an authentication bypass or code injection vulnerability), an attacker can escalate privileges to achieve full root access to the switch, effectively compromising the entire device.

MitigationApply vendor-supplied firmware updates when available; until then, restrict network access to the management interface using network segmentation or firewall rules, and monitor for unauthorized access attempts.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Pra Es8p2s FirmwareOperating system
Affected:<= 1.01.05

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Access the device's web interface or check the device label/menu for the exact model number to confirm it is a Bosch PRA-ES8P2S Ethernet switch
    Affected if The device is not a Bosch PRA-ES8P2S switch, then this specific CVE does not apply
  2. Check the firmware version
    Log into the device's web interface or CLI and navigate to the firmware/version information section to determine the installed firmware version
    Affected if The firmware version is at or below 1.01.05, indicating the device is running a vulnerable version
  3. Verify the web server is enabled
    Check the device configuration settings to confirm the embedded web server interface is enabled and accessible
    Affected if The web server is disabled, the privilege escalation vector through the web server is not reachable
  4. Confirm remote management access
    Examine network configuration to determine if remote web management is accessible from network segments outside the local management VLAN
    Affected if Remote management access is exposed to untrusted networks, enabling the combined attack with CVE-2022-23534 to be exploited

The device is affected if it is a Bosch PRA-ES8P2S switch running firmware version 1.01.05 or lower with the web interface enabled and accessible, particularly from untrusted network segments.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 1.01.05
Interim mitigation

Apply vendor-supplied firmware updates when available; until then, restrict network access to the management interface using network segmentation or firewall rules, and monitor for unauthorized access attempts.

Recommended fix Moderate confidence

Firmware version > 1.01.05 (obtain exact fixed version from Bosch PSIRT)

  1. 1. Identify the current firmware version of the PRA-ES8P2S switch by accessing the web management interface or using the CLI command to display firmware version.
  2. 2. Navigate to the Bosch Product Security incident response page (psirt.bosch.com) to obtain the recommended firmware version that addresses CVE-2022-32535 and CVE-2022-23534.
  3. 3. Download the updated firmware file from the official Bosch support portal.
  4. 4. Create a backup of the current switch configuration before proceeding with the firmware update.
  5. 5. Access the switch's firmware upgrade function through the web interface or CLI.
  6. 6. Upload and apply the new firmware version, following the manufacturer's upgrade procedure.
  7. 7. Verify the upgrade was successful by checking the new firmware version.
  8. 8. Confirm the web server now runs with non-root privileges after the update.
Caveat Firmware upgrades on industrial network devices may cause temporary service interruption; ensure proper change management and maintenance window is scheduled

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Pra Es8p2s Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,780
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-32535 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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