Information disclosure in Ge Multilin_b30
CVE-2021-27424
GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.
Vulnerability class: Information Disclosure
EPSS: 0.008 (53.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory, Mitigation)
- ics-cert@hq.dhs.gov (Vendor Advisory, Permissions Required, x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2021-27424?
- CVE-2021-27424 is a medium-severity vulnerability in Ge Multilin_b30, classified under Information Disclosure. CVSS score: 5.3/10. Published 2022-03-23.
- How severe is CVE-2021-27424?
- Medium severity. CVSS v3 base score is 5.3 out of 10.