Security readout for executives and security teams
Schneider Electric Modicon M221 controllers before firmware V1.6.2.0 have a password-protection weakness. An unauthorized user may be able to decode the password using rainbow tables. For executives, the concern is credential exposure on PLC equipment, which can increase operational risk if access controls or network segmentation are weak. Exposure is limited to Schneider Electric Modicon M221 devices running firmware earlier than V1.6.2.0. Risk is higher where unauthorized users can reach controller administration, engineering, or stored credential paths. The source bundle does not identify affected network services or prerequisites. Treat this as an operational technology credential-risk issue. Prioritize environments where Modicon M221 devices support production, safety-adjacent, or remote operations. Urgency depends on device exposure because the public bundle lacks CVSS and exploitation evidence. Mitigation focus: Inventory Modicon M221 controllers and record firmware versions.; Upgrade affected devices to firmware V1.6.2.0 or later per Schneider guidance.; Restrict access to PLC management and engineering interfaces..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-7792 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.schneider-electric.com/en/download/document/SEVD-2018-235-01/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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