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Vulnerability record · CVE-2022-22724 · published 4 February 2022

CVE-2022-22724: Schneider-electric modicon m340 bmxp341000 firmware uncontrolled resource consumption vulnerability

Schneider Electric · Modicon M340 Bmxp341000 Firmware

A CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause a denial of service on ports 80 (HTTP) and 502 (Modbus), when sending a large number of TCP RST or FIN packets to any open TCP port of the PLC. Affected Product: Modicon M340 CPUs: BMXP34 (All Versions)

7.5 CVSS 3.1 High EPSS 0.93% · top 40.5% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score, v2 5.0
0.93%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause a denial of service on ports 80 (HTTP) and 502 (Modbus), when sending a large number of TCP RST or FIN packets to any open TCP port of the PLC. Affected Product: Modicon M340 CPUs: BMXP34 (All Versions)

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

Affected products

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

References

LinkTags
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-01 MitigationPatchVendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-01 MitigationPatchVendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2022-22724), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.