Cyber Resilience

CVE-2023-6408

High

Published: 14 February 2024

Published
14 February 2024
Modified
23 January 2025
KEV Added
Patch
CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0015 34.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-6408 is a high-severity Improper Enforcement of Message Integrity During Transmission in a Communication Channel (CWE-924) vulnerability in Schneider-Electric Modicon M340 Bmxp341000 Firmware. Its CVSS base score is 8.1 (High).

Operationally, ranked at the 34.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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 controllers when conducting a Man in the Middle attack.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

schneider-electric
modicon m340 bmxp341000 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp341000h firmware
≤ 3.60
schneider-electric
modicon m340 bmxp342000 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp342010 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp3420102 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp3420102cl firmware
≤ 3.60
schneider-electric
modicon m340 bmxp342020 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp342020h firmware
≤ 3.60
schneider-electric
modicon m340 bmxp342030 firmware
≤ 3.60
schneider-electric
modicon m340 bmxp3420302 firmware
≤ 3.60
+36 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-924

The control directly mandates integrity protection for transmitted information, addressing failures to enforce message integrity in transit.

References