CVE-2021-27424

MEDIUM

GE Multilin UR Firmware < 8.10 - Unauthorized Information Exposure via MODBUS Register

Title source: llm
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Mitigation, Third Party Advisory, US Government Resource x_refsource_confirm
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
Permissions Required, Vendor Advisory x_refsource_confirm
https://www.gegridsolutions.com/Passport/Login.aspx

Scores

CVSS v3 5.3
EPSS 0.0084
EPSS Percentile 53.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-200 CWE-668
Status published
Products (19)
ge/multilin_b30_firmware < 8.10
ge/multilin_b90_firmware < 8.10
ge/multilin_c30_firmware < 8.10
ge/multilin_c60_firmware < 8.10
ge/multilin_c70_firmware < 8.10
ge/multilin_c95_firmware < 8.10
ge/multilin_d30_firmware < 8.10
ge/multilin_d60_firmware < 8.10
ge/multilin_f35_firmware < 8.10
ge/multilin_f60_firmware < 8.10
... and 9 more
Published Mar 23, 2022
Tracked Since Feb 18, 2026