Security readout for executives and security teams
Some Schneider Electric Modicon M241 and M251 PLC firmware generated weak web session numbers. If an attacker can reach the PLC web application, a valid user session may be compromised. This affects operational technology, so the business concern is unauthorized access to industrial controller management, not ordinary website data theft. Exposure is most likely where Schneider Electric Modicon M241 or M251 PLCs run firmware older than 4.0.5.11 and their web application is reachable by users or networks beyond tightly controlled OT administration paths. Treat this as a targeted OT remediation item. Prioritize internet- or enterprise-reachable PLC web interfaces first, then schedule firmware updates through normal industrial change controls to avoid operational disruption. Mitigation focus: Identify Modicon M241 and M251 PLCs and record firmware versions.; Upgrade affected devices to firmware 4.0.5.11 or later where supported.; Review Schneider Electric and CISA ICS-CERT guidance before applying changes in production OT..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2017-6026 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://ics-cert.us-cert.gov/advisories/ICSA-17-089-02CVE reference · x_refsource_MISC
- 45918CVE reference · exploit, x_refsource_EXPLOIT-DB
Products and packages named in the record
CWE details
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Use of Insufficiently Random Values
Use of Insufficiently Random Values represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.