CODESYS: Incorrect calculation of buffer size can cause DoS on CODESYS OPC UA products
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
exploitation probability
0.6%top 56% of all CVEs
observed exploitation
nono source reports it
An unauthenticated remote attacker can use a malicious OPC UA client to send a crafted request to affected CODESYS products which can cause a DoS due to incorrect calculation of buffer size.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
CODESYS · CODESYS Control for BeagleBone SLCODESYS · CODESYS Control for emPC-A/iMX6 SLCODESYS · CODESYS Control for IOT2000 SLCODESYS · CODESYS Control for Linux ARM SLCODESYS · CODESYS Control for Linux SLCODESYS · CODESYS Control for PFC100 SLCODESYS · CODESYS Control for PFC200 SLCODESYS · CODESYS Control for PLCnext SLCODESYS · CODESYS Control for Raspberry Pi SLCODESYS · CODESYS Control for WAGO Touch Panels 600 SLCODESYS · CODESYS Control RTE (for Beckhoff CX) SLCODESYS · CODESYS Control RTE (SL)CODESYS · CODESYS Control Win (SL)CODESYS · CODESYS HMI (SL)CODESYS · CODESYS Runtime Toolkit