CVE-2018-7791
CRITICALSchneider Electric's Modicon M221 - Privilege Escalation
Title source: llmDescription
A Permissions, Privileges, and Access Control vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to overwrite the original password with their password. If an attacker exploits this vulnerability and overwrite the password, the attacker can upload the original program from the PLC.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/105182
Mitigation, Vendor Advisory x_refsource_confirm
https://www.schneider-electric.com/en/download/document/SEVD-2018-235-01/
Scores
CVSS v3
9.8
EPSS
0.0190
EPSS Percentile
77.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-284
CWE-287
Status
published
Products (2)
Schneider Electric SE/Modicon M221, all references, all versions prior to firmware V1.6.2.0
Modicon M221, all references, all versions prior to firmware V1.6.2.0
schneider-electric/modicon_m221_firmware
< 1.6.2.0
Published
Aug 29, 2018
Tracked Since
Feb 18, 2026