CVE-2020-28214

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Summary

CVECVE-2020-28214
StatePUBLISHED
Assignerschneider
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-11 01:15:11 UTC
Updated2026-05-28 21:16:26 UTC
DescriptionA CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.000930000 probability, percentile 0.260550000 (date 2026-06-02)

Problem Types: CWE-760 | CWE-760 CWE-760: Use of a One-Way Hash with a Predictable Salt

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:L/AC:L/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Schneider-electric Modicon M221 - All All All
Operating System Schneider-electric Modicon M221 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Modicon M221 All References All Versions affected Modicon M221 (all references, all versions) Not specified

References

ReferenceSourceLinkTags
Schneider Electric Modicon M221 Programmable Logic Controller | CISA af854a3a-2127-422b-91ae-364da2661108 us-cert.cisa.gov Third Party Advisory, US Government Resource
Security Notification - Modicon M100/M200/M221 Programmable Logic Controller (V3.0) | Schneider Electric af854a3a-2127-422b-91ae-364da2661108 www.se.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 590471 Schneider Electric Modicon M221 Programmable Logic Controller Multiple Vulnerabilities (ICSA-20-343-04)
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