title: Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service
description: When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
problem types: CWE-369 Divide By Zero
affected:
{
product: TwinCAT 2
vendor: Beckhoff
versions:
lessThanOrEqual: 2304, status: affected, version: 2304, versionType: custom
}
{
product: TwinCAT 3.1
vendor: Beckhoff
versions:
lessThanOrEqual: 4204.0, status: affected, version: 4204.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]