← Vulnerability feed

Vulnerability record · CVE-2022-37300 · published 12 September 2022

CVE-2022-37300: Schneider-electric ecostruxure control expert weak password recovery vulnerability

Schneider Electric · Ecostruxure Control Expert

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).

9.8 CVSS 3.1 Critical EPSS 0.75% · top 46.9% CWE-640 · Weak password recovery
9.8CVSS 3.1 base score
0.75%EPSS exploitation probability, 30 days
NoNot in CISA KEV
36Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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).

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

Affected products

36 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.se.com/us/en/download/document/SEVD-2022-221-01/ PatchVendor Advisory
https://www.se.com/us/en/download/document/SEVD-2022-221-01/ PatchVendor Advisory

Track CVE-2022-37300 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-45789Schneider-electric ecostruxure control expert authentication bypass by capture-replay vulnerabilityA CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthorized Modbus functions on the controller…EPSS 1.5%9.8CVE-2022-45788Schneider-electric ecostruxure control expert vulnerabilityA CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause arbitrary code execution, denial of service and…EPSS 1.2%9.8CVE-2022-26507Att xmill out-of-bounds write vulnerabilityA heap-based buffer overflow exists in XML Decompression DecodeTreeBlock in AT&T Labs Xmill 0.7. A crafted input file can lead to remote code executi…EPSS 2.4%9.8CVE-2020-7540Schneider-electric modicon m340 bmxp341000 firmware missing authentication for critical function vulnerabilityA CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Mod…EPSS 2.3%9.8CVE-2020-7533Schneider-electric modicon m340 bmxp3420302 firmware improper authentication vulnerabilityCWE-287: Improper Authentication vulnerability exists which could cause the execution of commands on the webserver without authentication when sendin…EPSS 2.3%9.8CVE-2020-28212Schneider-electric ecostruxure control expert improper restriction of authentication attempts vulnerabilityA CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity …EPSS 2.8%9.8CVE-2020-7475Schneider-electric ecostruxure control expert injection vulnerabilityA CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), reflective DLL, vulnerability exists in…EPSS 1.6%9.8CVE-2018-7241Schneider-electric bmxnor0200 firmware hard-coded credentials vulnerabilityHard coded accounts exist in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the c…EPSS 3.7%

Source: NIST National Vulnerability Database (record CVE-2022-37300), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.