Beckhoff TwinCAT 22.214.171.1244 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
TwinCAT is prone to a denial-of-service vulnerability.Attackers can exploit this issue to crash the application, denying service to legitimate users. TwinCAT 2.11 R2 Build 2032 is vulnerable. Other versions may also be affected.
The vendor released an update. Please contact the vendor for more information on how to obtain and apply this update.
Exploit code is available. Please see the references for information.