Overview
- Description
- When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
- Source
- cve@rapid7.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:beckhoff:twincat:2.0:build2304:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CB711A2C-9F84-4462-82C8-296C51CC2F60"
},
{
"criteria": "cpe:2.3:a:beckhoff:twincat:3.1:build4024.0:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BB46CCC9-4BF8-43CC-A382-5287F432DC9B"
}
],
"operator": "OR"
}
]
}
]