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CVE-2017-6026

Published: Jun 30, 2017Updated: May 13, 2026 Sources: CVE List NVD csafCWE-330
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
31.8%
Top 1.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization and are shared between several users. This may allow a current session to be compromised.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-330

Affected Products

Schneider Electric Modicon PLCsn/a
modicon m251 firmwareschneider-electricICS / OT / IoT
modicon m241 firmwareschneider-electricICS / OT / IoT
schneider-electriccommercialFRICS / OT / IoTaka schneider electric se

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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MITRE ATT&CK

1 technique
Credential Access
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References

https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02
ics-cert.us-cert.gov
http://www.securityfocus.com/bid/97254
securityfocus.com
https://www.exploit-db.com/exploits/45918/
exploit-db.com
and 8 more references View all →

Timeline

Published
Jun 30, 2017
Last Updated
May 13, 2026

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