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Desigo Pxm30 1 FirmwareOperating system · Siemens

CVE-2022-40182

HIGH · 8.8 CVSS v3.1 Published 2022-10-11
Fix available
A fix is available. Upgrade to 02.20.126.11-37 / 02.20.126.11-41 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click Patch available

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
A vulnerability has been identified in Desigo PXM30-1 (All versions < V02.20.126.11-41), Desigo PXM30.E (All versions < V02.20.126.11-41), Desigo PXM40-1 (All versions < V02.20.126.11-41), Desigo PXM40.E (All versions < V02.20.126.11-41), Desigo PXM50-1 (All versions < V02.20.126.11-41), Desigo PXM50.E (All versions < V02.20.126.11-41), PXG3.W100-1 (All versions < V02.20.126.11-37), PXG3.W100-2 (All versions < V02.20.126.11-41), PXG3.W200-1 (All versions < V02.20.126.11-37), PXG3.W200-2 (All versions < V02.20.126.11-41). The device embedded Chromium-based browser is launched as root with the “--no-sandbox” option. Attackers can add arbitrary JavaScript code inside “Operation” graphics and successfully exploit any number of publicly known vulnerabilities against the version of the embedded Chromium-based browser.

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

A detailed technical summary for this CVE is being prepared.

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
Desigo Pxm30 1 FirmwareOperating system
Affected:< 02.20.126.11-41
Desigo Pxm30.e FirmwareOperating system
Affected:< 02.20.126.11-41
Desigo Pxm40 1 FirmwareOperating system
Affected:< 02.20.126.11-41
Desigo Pxm40.e FirmwareOperating system
Affected:< 02.20.126.11-41
Desigo Pxm50 1 FirmwareOperating system
Affected:< 02.20.126.11-41
Desigo Pxm50.e FirmwareOperating system
Affected:< 02.20.126.11-41
Pxg3.w100 1 FirmwareOperating system
Affected:< 02.20.126.11-37
Pxg3.w100 2 FirmwareOperating system
Affected:< 02.20.126.11-41

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 02.20.126.11-37 / 02.20.126.11-41 or later
Fixed in 02.20.126.11-3702.20.126.11-41
Vendor patch cert-portal.siemens.com →
Recommended fix High confidence

V02.20.126.11-41 (for most models) or V02.20.126.11-37 (for Pxg3.w100-1 and Pxg3.w200-1)

  1. 1. Identify the exact model and current firmware version of your Desigo PXM or PXG3 device using the device management interface or physical label.
  2. 2. Navigate to the Siemens ProductCERT website or access the patch document at https://cert-portal.siemens.com/productcert/pdf/ssa-360783.pdf to obtain the correct firmware version.
  3. 3. For Desigo Pxm30-1, Pxm30.e, Pxm40-1, Pxm40.e, Pxm50-1, Pxm50.e devices: upgrade firmware to version V02.20.126.11-41 or later.
  4. 4. For Pxg3.w100-1 and Pxg3.w200-1 devices: upgrade firmware to version V02.20.126.11-37 or later.
  5. 5. For Pxg3.w100-2 and Pxg3.w200-2 devices: upgrade firmware to version V02.20.126.11-41 or later.
  6. 6. Follow Siemens' standard firmware upgrade procedure for your specific device (typically via the device's web interface or management software).
  7. 7. After upgrade, verify the device is running the patched firmware version and confirm the Chromium browser is no longer running with root privileges and the --no-sandbox flag.
Caveat Review Siemens upgrade documentation for any configuration considerations; firmware upgrades on building automation devices may temporarily disrupt connected HVAC/building control operations

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

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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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

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