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CODESYS

Records156All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical18CVSS 9.0–10.0
CVSS high95CVSS 7.0–8.9

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CODESYS records in CISA KEV

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Records

23 records in Runtime Toolkit · all components

Priority MEDIUM 45

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…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.01229 Published 2022-06-24 Fixed in V2.4.7.57 CWE-1188
Priority MEDIUM 42

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.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00883 Published 2023-03-23 Fixed in 3.5.19.0, 4.8.0.0 CWE-1188
Priority MEDIUM 41

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.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.01426 Published 2022-06-24 Fixed in V2.4.7.57 CWE-122
Priority MEDIUM 40

A low-privileged remote attacker could exploit the vulnerability and inject additional system commands via file system libraries which could give the attacker full control of the device.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00958 Published 2023-12-05 Fixed in 4.11.0.0, 3.5.19.50 CWE-78
Priority MEDIUM 40

In multiple CODESYS products, file download and upload function allows access to internal files in the working directory e.g.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.01219 Published 2022-06-24 Fixed in V2.4.7.57 CWE-552
Priority LOW 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.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00417 Published 2025-12-01 Fixed in 3.5.21.40, 4.19.0.0 CWE-843
Priority LOW 37

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 loc…

CVSS 3.1HIGH 8.1 Network Low privileges No interaction EPSS 0.00855 Published 2021-10-26 Fixed in V2.4.7.56 CWE-823
Priority LOW 35

In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.01046 Published 2022-06-24 Fixed in V2.3.9.69, V3.5.18.30 +4 CWE-523
Priority LOW 31

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 c…

CVSS 3.1MEDIUM 6.5 Network Low privileges No interaction EPSS 0.01065 Published 2022-06-24 Fixed in V2.4.7.57 CWE-120
Priority LOW 30

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.

CVSS 3.1MEDIUM 6.5 Network Low privileges No interaction EPSS 0.00832 Published 2021-10-26 Fixed in V2.4.7.56 CWE-824
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