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.
Metrics
Affected Vendors & Products
References
History
Fri, 29 May 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-284 | |
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: schneider
Published: 2018-08-29T21:00:00.000Z
Updated: 2026-05-29T13:59:17.157Z
Reserved: 2018-03-08T00:00:00.000Z
Link: CVE-2018-7791
Updated: 2024-08-05T06:37:59.143Z
Status : Modified
Published: 2018-08-29T21:29:01.180
Modified: 2026-05-29T15:16:16.447
Link: CVE-2018-7791
No data.