Is CVE-2023-6408 actively exploited?

No active exploitation of CVE-2023-6408 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-6408 be exploited remotely?

Yes. CVE-2023-6408 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-6408?

CVE-2023-6408 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2023-6408

CWE-924Published: February 14, 2024· Updated: Jun 17, 2026

8.1

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2023-6408 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

schneider-electric90 product(s)

modicon m340 bmxp341000 firmwaremodicon m340 bmxp341000modicon m340 bmxp341000h firmwaremodicon m340 bmxp341000hmodicon m340 bmxp342000 firmwaremodicon m340 bmxp342000modicon m340 bmxp342010 firmwaremodicon m340 bmxp342010modicon m340 bmxp3420102 firmwaremodicon m340 bmxp3420102modicon m340 bmxp3420102cl firmwaremodicon m340 bmxp3420102cl+78

Source: NVD CPE · 90 total CPE entries