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Ecostruxure Control ExpertApplication · Schneider Electric

CVE-2022-37300

CRITICAL · 9.8 CVSS v3.1 Published 2022-09-12
Fix available
A fix is available. Upgrade to 3.50 / 15.1 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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 CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could cause unauthorized access in read and write mode to the controller when communicating over Modbus. Affected Products: EcoStruxure Control Expert Including all Unity Pro versions (former name of EcoStruxure Control Expert) (V15.0 SP1 and prior), EcoStruxure Process Expert, Including all versions of EcoStruxure Hybrid DCS (former name of EcoStruxure Process Expert) (V2021 and prior), Modicon M340 CPU (part numbers BMXP34*) (V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*) (V3.20 and prior).

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
Ecostruxure Control ExpertApplication
Affected:< 15.1
Ecostruxure Process ExpertApplication
Affected:<= 2021
Modicon M340 Bmxp341000 FirmwareOperating system
Affected:< 3.50
Modicon M340 Bmxp342000 FirmwareOperating system
Affected:< 3.50
Modicon M340 Bmxp342010 FirmwareOperating system
Affected:< 3.50
Modicon M340 Bmxp3420102 FirmwareOperating system
Affected:< 3.50
Modicon M340 Bmxp342020 FirmwareOperating system
Affected:< 3.50
Modicon M340 Bmxp342020h FirmwareOperating system
Affected:< 3.50

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

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 3.50 / 15.1 or later
Fixed in 3.5015.1
Vendor patch www.se.com →
Recommended fix High confidence

Ecostruxure Control Expert 15.1; Ecostruxure Process Expert >2021; Modicon M340 firmware 3.50

  1. Upgrade Ecostruxure Control Expert to version 15.1 or later
  2. Upgrade Ecostruxure Process Expert to a version newer than 2021
  3. Upgrade Modicon M340 BMXP341000 firmware to version 3.50 or later
  4. Upgrade Modicon M340 BMXP342000 firmware to version 3.50 or later
  5. Upgrade Modicon M340 BMXP342010 firmware to version 3.50 or later
  6. Upgrade Modicon M340 BMXP3420102 firmware to version 3.50 or later
  7. Upgrade Modicon M340 BMXP342020 firmware to version 3.50 or later
  8. Upgrade Modicon M340 BMXP342020H firmware to version 3.50 or later
Caveat Review release notes for any compatibility changes between versions; firmware updates may require controller downtime

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 $2,300. 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

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-37300 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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