CRITICAL: CVE-2018-7791 (CVSS 9.8) — schneider-electric modicon m221 firmware
CVE: CVE-2018-7791
CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL
Status: Critical advisory
Affected
- schneider-electric modicon m221 firmware
- schneider-electric modicon m221
Summary
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.
Verified Sources
References
- http://www.securityfocus.com/bid/105182
- https://www.schneider-electric.com/en/download/document/SEVD-2018-235-01/
- http://www.securityfocus.com/bid/105182
- https://www.schneider-electric.com/en/download/document/SEVD-2018-235-01/
_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._
Lyrie Verdict
A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.
Validated sources
- [1]NVD
- [2]GitHub Advisory
- [3]MITRE