CVE-2022-22724

Name: CVE-2022-22724
Creator: NVD / NIST
Published: 2022-02-04T23:15:13.16+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2022-22724 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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). EPSS estimates a 0.92% chance of exploitation in the next 30 days.

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)

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Schneider-Electric	Modicon M340 Bmxp341000 Firmware	All versions
Schneider-Electric	Modicon M340 Bmxp342000 Firmware	All versions
Schneider-Electric	Modicon M340 Bmxp342010 Firmware	All versions
Schneider-Electric	Modicon M340 Bmxp3420102 Firmware	All versions
Schneider-Electric	Modicon M340 Bmxp342030 Firmware	All versions
Schneider-Electric	Modicon M340 Bmxp3420302 Firmware	All versions

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-01Mitigation, Patch, Vendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-01Mitigation, Patch, Vendor Advisory

Timeline

Published: Feb 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-22724?

How severe is CVE-2022-22724?

CVE-2022-22724 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22724?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22724?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST