CVE-2020-12015

A specially crafted communication packet sent to the affected systems could cause a denial-of-service condition due to improper deserialization. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; Mitsubishi Electric MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; ICONICS GenBroker32 version 9.5 and prior.

Published: 2020-07-16 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12015 is rated Moderate Risk (43.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.20%). 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-2020-12015

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 2025-03-30 0.26% 0.20% -0.06%
2 2025-03-29 0.20% 0.26% +0.06%
3 2025-03-17 — 0.20% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12015

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2020-12015

Affected software / configurations for CVE-2020-12015

Vendor Product Version Raw CPE
mitsubishielectric mc_works <= 10.95.208.31 cpe:2.3:a:mitsubishielectric:mc_works:*:*:*:*:*:*:*:*
mitsubishielectric mc_works32 9.50.255.02 cpe:2.3:a:mitsubishielectric:mc_works32:9.50.255.02:*:*:*:*:*:*:*
iconics energy_analytix — cpe:2.3:a:iconics:energy_analytix:-:*:*:*:*:*:*:*
iconics facility_analytix — cpe:2.3:a:iconics:facility_analytix:-:*:*:*:*:*:*:*
iconics genesis64 — cpe:2.3:a:iconics:genesis64:-:*:*:*:*:*:*:*
iconics hyper_historian — cpe:2.3:a:iconics:hyper_historian:-:*:*:*:*:*:*:*
iconics mobilehmi — cpe:2.3:a:iconics:mobilehmi:-:*:*:*:*:*:*:*
iconics quality_analytix — cpe:2.3:a:iconics:quality_analytix:-:*:*:*:*:*:*:*
iconics smart_energy_analytix — cpe:2.3:a:iconics:smart_energy_analytix:-:*:*:*:*:*:*:*
iconics bizviz — cpe:2.3:a:iconics:bizviz:-:*:*:*:*:*:*:*
iconics genesis32 — cpe:2.3:a:iconics:genesis32:-:*:*:*:*:*:*:*

References for CVE-2020-12015

URL Tags
https://www.us-cert.gov/ics/advisories/icsa-20-170-02 Third Party Advisory US Government Resource
https://www.us-cert.gov/ics/advisories/icsa-20-170-03 Third Party Advisory US Government Resource
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