Privilege escalation in Schneider-electric Modbus_driver_suite

CVE-2020-7523

Improper Privilege Management vulnerability exists in Schneider Electric Modbus Serial Driver (see security notification for versions) which could cause local privilege escalation when the Modbus Serial Driver service is invoked. The drive…

Vulnerability class: Privilege Escalation

EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Schneider-electric Modbus_driver_suite
  • Schneider-electric Modbus_serial_driver
  • N/a Schneider Electric Modbus Serial Driver (64 Bits) Versions Prior To V3.20 Ie 30, (32 V2.20 And Suite V14.15.0.0 — versions Schneider Electric Modbus Serial Driver (64 bits) versions prior to V3.20 IE 30, Schneider Electric Modbus Serial Driver (32 bits) versions prior to V2.20 IE 30, and Schneider Electric Modbus Driver Suite versions prior to V14.15.0.1

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-7523?
CVE-2020-7523 is a high-severity vulnerability in Schneider-electric Modbus_driver_suite, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2020-08-31.
How severe is CVE-2020-7523?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-7523 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.