# CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability exists that could cause a denial of service and loss of confidentiality, integrity of c…

CVE record · `CVE-2023-6408`

- **Identifiers:** `CVE-2023-6408`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **CNA:** schneider
- **Weakness (CWE):** [CWE-924](https://cwe.mitre.org/data/definitions/924.html)
- **Tags:** [CWE-924](https://agentprime.io/advisories/tag/cwe-924.md)
- **Technologies:** [Schneider Electric Modicon M340 CPU (part numbers BMXP34\*)](https://agentprime.io/advisories/technology/schneider-electric-modicon-m340-cpu-part-numbers-bmxp34.md) · [Schneider Electric Modicon M580 CPU (part numbers BMEP\* and BMEH\*, excluding M580 CPU Safety)](https://agentprime.io/advisories/technology/schneider-electric-modicon-m580-cpu-part-numbers-bmep-and-bmeh-excluding-m580-cp.md) · [Schneider Electric Modicon M580 CPU Safety (part numbers BMEP58\*S and BMEH58\*S)](https://agentprime.io/advisories/technology/schneider-electric-modicon-m580-cpu-safety-part-numbers-bmep58-s-and-bmeh58-s.md) · [Schneider Electric EcoStruxure Control Expert](https://agentprime.io/advisories/technology/schneider-electric-ecostruxure-control-expert.md) · [Schneider Electric EcoStruxure Process Expert](https://agentprime.io/advisories/technology/schneider-electric-ecostruxure-process-expert.md)
- **Published:** 14 Feb 2024
- **Updated:** 2 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: schneider) at 14 Feb 2024, 16:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Schneider Electric. Product: Modicon M340 CPU (part numbers BMXP34\*).
  - affected: `Versions prior to sv3.60`
  - Other versions: unaffected
- Vendor: Schneider Electric. Product: Modicon M580 CPU (part numbers BMEP\* and BMEH\*, excluding M580 CPU Safety).
  - affected: `Versions prior to sv4.20`
  - Other versions: unaffected
- Vendor: Schneider Electric. Product: Modicon M580 CPU Safety (part numbers BMEP58\*S and BMEH58\*S).
  - affected: `All Versions`
  - Other versions: unaffected
- Vendor: Schneider Electric. Product: EcoStruxure Control Expert.
  - affected: `Versions prior to v16.0`
  - Other versions: unaffected
- Vendor: Schneider Electric. Product: EcoStruxure Process Expert.
  - affected: `Versions prior to v2023`
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (schneider)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0032, the 24th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 14 Feb 2024. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2023-6408](https://www.cve.org/CVERecord?id=CVE-2023-6408)
- [NVD: CVE-2023-6408](https://nvd.nist.gov/vuln/detail/CVE-2023-6408)

### References from the CNA

- <https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-044-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-044-01.pdf>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2023-6408>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2023-6408/>. Everything for agents: <https://agentprime.io/llms.txt>.
