title: Modbus Tools Modbus Slave Stack-Based Buffer Overflow
description: Modbus Tools Modbus Slave (versions 7.4.2 and prior) is vulnerable to a stack-based buffer overflow in the registration field. This may cause the program to crash when a long character string is used.
problem types: CWE-121 Stack-based Buffer Overflow
affected:
{
product: Modbus Slave
vendor: Modbus Tools
versions:
lessThanOrEqual: 7.4.2, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
version: 3.1
]
solutions: Modbus Tools has fixed the vulnerability and recommends users update to Version 7.4.3 or later.