CVE-2023-6408

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.

Published: 2024-02-14 Last update: 2025-01-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-6408 is rated Moderate Risk (44.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.15%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-6408

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.15% 0.15% -0.00%
2 2026-05-22 0.15% 0.15% +0.00%
3 2026-03-16 — 0.15% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-6408

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]

Weakness enumeration for CVE-2023-6408

Affected software / configurations for CVE-2023-6408

Vendor Product Version Raw CPE
schneider-electric modicon_m340_bmxp341000_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp341000h_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342000_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342010_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342010_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420102_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420102cl_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102cl_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342020_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342020h_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342030_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342030_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420302_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420302cl_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302cl_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420302h_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342030h_firmware < 3.60 cpe:2.3:o:schneider-electric:modicon_m340_bmxp342030h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep581020_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep581020h_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep581020h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep582020_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep582020h_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep582020h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep582040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep582040h_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep582040h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep582040s_firmware < 4.21 cpe:2.3:o:schneider-electric:modicon_m580_bmep582040s_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep583020_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep583040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep584040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep584020_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep584040s_firmware < 4.21 cpe:2.3:o:schneider-electric:modicon_m580_bmep584040s_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep585040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep585040c_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep585040c_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep586040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmep586040c_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmep586040c_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh582040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh582040c_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040c_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh584040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh582040s_firmware < 4.21 cpe:2.3:o:schneider-electric:modicon_m580_bmeh582040s_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh584040c_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040c_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh584040s_firmware < 4.21 cpe:2.3:o:schneider-electric:modicon_m580_bmeh584040s_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh586040_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh586040c_firmware < 4.20 cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040c_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_m580_bmeh586040s_firmware < 4.21 cpe:2.3:o:schneider-electric:modicon_m580_bmeh586040s_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_mc80_bmkc8020301_firmware — cpe:2.3:o:schneider-electric:modicon_mc80_bmkc8020301_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_mc80_bmkc8020310_firmware — cpe:2.3:o:schneider-electric:modicon_mc80_bmkc8020310_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_mc80_bmkc8030311 — cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8030311:*:*:*:*:*:*:*:*
schneider-electric modicon_momentum_171cbu78090_firmware — cpe:2.3:o:schneider-electric:modicon_momentum_171cbu78090_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_momentum_171cbu98090_firmware — cpe:2.3:o:schneider-electric:modicon_momentum_171cbu98090_firmware:*:*:*:*:*:*:*:*
schneider-electric modicon_momentum_171cbu98091_firmware — cpe:2.3:o:schneider-electric:modicon_momentum_171cbu98091_firmware:*:*:*:*:*:*:*:*
schneider-electric ecostruxure_control_expert < 16.0 cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:*
schneider-electric ecostruxure_process_expert < 2023 cpe:2.3:a:schneider-electric:ecostruxure_process_expert:*:*:*:*:*:*:*:*

References for CVE-2023-6408

cvelogic Threat Intelligence