Codesys Runtime Toolkit vulnerabilities
27 vulnerabilities
Known vulnerabilities in Codesys Runtime Toolkit, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.
CVE-2021-30195codesysplcwinnt+28
EPSS score7.55%
CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.CVE-2021-30187codesysruntime_toolkit+27EPSS score0.27%
CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.CVE-2021-30186codesysplcwinnt+28EPSS score7.74%
CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.CVE-2021-34596codesyscodesys+30EPSS score0.83%
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.CVE-2021-34595codesyscodesys+30EPSS score0.85%
A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.CVE-2021-34593codesyscodesys v2+15EPSS score2.66%
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.CVE-2021-33486codesysruntime_toolkitEPSS score0.96%
All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.CVE-2025-41659codesyscontrol_for_beaglebone_sl+15EPSS score0.22%
A low-privileged attacker can remotely access the PKI folder of the CODESYS Control runtime system and thus read and write certificates and its keys. This allows sensitive data to be extracted or to accept certificates as trusted. Although all services remain available, only unencrypted communication is possible if the certificates are deleted.CVE-2025-41658codesyscontrol_for_beaglebone_sl+11EPSS score0.12%
CODESYS Runtime Toolkit-based products may expose sensitive files to local low-privileged operating system users due to default file permissions.CVE-2025-41738codesyscodesys control for beaglebone sl+33EPSS score0.39%
An unauthenticated remote attacker may cause the visualisation server of the CODESYS Control runtime system to access a resource with a pointer of wrong type, potentially leading to a denial-of-service (DoS) condition.CVE-2022-1965codesysplcwinnt+1EPSS score1.05%
Multiple products of CODESYS implement a improper error handling. A low privilege remote attacker may craft a request, which is not properly processed by the error handling. In consequence, the file referenced by the request could be deleted. User interaction is not required.CVE-2022-31805codesyscodesys development system+21EPSS score1.02%
In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.CVE-2022-31806codesyscodesys plcwinnt+3EPSS score1.20%
In CODESYS V2 PLCWinNT and Runtime Toolkit 32 in versions prior to V2.4.7.57 password protection is not enabled by default and there is no information or prompt to enable password protection at login in case no password is set at the controller.CVE-2022-4224codesyscontrol_for_beaglebone_sl+19EPSS score0.88%
In multiple products of CODESYS v3 in multiple versions a remote low privileged user could utilize this vulnerability to read and modify system files and OS resources or DoS the device.CVE-2022-32143codesysplcwinnt+1EPSS score1.19%
In multiple CODESYS products, file download and upload function allows access to internal files in the working directory e.g. firmware files of the PLC. All requests are processed on the controller only if no level 1 password is configured on the controller or if remote attacker has previously successfully authenticated himself to the controller. A successful Attack may lead to a denial of service, change of local files, or drain of confidential Information. User interaction is not requiredCVE-2022-32141codesysplcwinnt+1EPSS score1.02%
Multiple CODESYS Products are prone to a buffer over read. A low privileged remote attacker may craft a request with an invalid offset, which can cause an internal buffer over-read, resulting in a denial-of-service condition. User interaction is not required.CVE-2022-32136codesysplcwinnt+1EPSS score1.02%
In multiple CODESYS products, a low privileged remote attacker may craft a request that cause a read access to an uninitialized pointer, resulting in a denial-of-service. User interaction is not required.CVE-2022-32140codesysplcwinnt+1EPSS score1.04%
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.CVE-2022-32138codesysplcwinnt+1EPSS score1.19%
In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.CVE-2022-32137codesysplcwinnt+1EPSS score1.39%
In multiple CODESYS products, a low privileged remote attacker may craft a request, which may cause a heap-based buffer overflow, resulting in a denial-of-service condition or memory overwrite. User interaction is not required.