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Desigo Pxm30 1 FirmwareOperating system · Siemens

CVE-2022-40181

HIGH · 8.3 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 →
89/100
Remediation priority · High
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 browser does not prevent interaction with alternative URI schemes when redirected to corresponding resources by web application code. By setting the homepage URI, the favorite URIs, or redirecting embedded browser users via JavaScript code to alternative scheme resources, a remote low privileged attacker can perform a range of attacks against the device, such as read arbitrary files on the filesystem, execute arbitrary JavaScript code in order to steal or manipulate the information on the screen, or trigger denial of service conditions.

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
Low
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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 (or V02.20.126.11-37 for Pxg3.w100-1)

  1. 1. Identify the specific device model (Pxm30-1, Pxm30.e, Pxm40-1, Pxm40.e, Pxm50-1, Pxm50.e, Pxg3.w100-1, or Pxg3.w100-2) from the affected product list
  2. 2. Determine the current firmware version of the device by accessing the device's web interface or checking system information
  3. 3. For Desigo Pxm30-1, Pxm30.e, Pxm40-1, Pxm40.e, Pxm50-1, Pxm50.e, and Pxg3.w100-2: Upgrade firmware to version V02.20.126.11-41 or later
  4. 4. For Pxg3.w100-1: Upgrade firmware to version V02.20.126.11-37 or later
  5. 5. Obtain the firmware update from the official Siemens support portal or through the device's built-in update mechanism
  6. 6. Follow the standard firmware update procedure documented in the Siemens Desigo PXM/PXG user manual
  7. 7. After upgrade, verify that the firmware version matches the target fixed version
  8. 8. Test that the embedded browser properly prevents interaction with alternative URI schemes (file://, javascript:, etc.)
Caveat Review Siemens firmware release notes for any functional changes between current and target version before upgrading

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

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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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