CVE-2022-37301

7.5 HIGH 0.8% exploit odds Fix listed

What it is

A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol. Affected products: Modicon M340 CPU (part numbers BMXP34*)(V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*)(V3.22 and prior), Legacy Modicon Quantum/Premium(All Versions), Modicon Momentum MDI (171CBU*)(All Versions), Modicon MC80 (BMKC80)(V1.7 and prior)

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2022-11-22 12:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:54 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.8% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2022-11-22 12:15 UTC
Last modified: 2026-06-17 04:54 UTC
Exploit probability: 0.8% · EPSS, next 30 days
Weakness: CWE-191
Record status: Modified

Affected

schneider-electric Modicon m340 Bmx p34-2010 Firmware < 3.50
schneider-electric Modicon m340 Bmx p34-2030 Firmware < 3.50
schneider-electric Modicon m580 bmeh582040 Firmware < 4.01
schneider-electric Modicon m580 bmeh582040c Firmware < 4.01
schneider-electric Modicon m580 bmeh582040s Firmware < 4.01
schneider-electric Modicon m580 bmeh584040 Firmware < 4.01
schneider-electric Modicon m580 bmeh584040c Firmware < 4.01
schneider-electric Modicon m580 bmeh584040s Firmware < 4.01

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2022-37301.md and follow it. Check whether this project is affected by CVE-2022-37301. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record