Vulnerabilities > Codesys

DATE CVE VULNERABILITY TITLE RISK
2021-10-26 CVE-2021-34583 Out-of-bounds Write vulnerability in Codesys
Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.
network
low complexity
codesys CWE-787
7.5
2021-10-26 CVE-2021-34584 Buffer Over-read vulnerability in Codesys
Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.
network
low complexity
codesys CWE-126
critical
9.1
2021-10-26 CVE-2021-34585 Unchecked Return Value vulnerability in Codesys
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error.
network
low complexity
codesys CWE-252
7.5
2021-10-26 CVE-2021-34586 NULL Pointer Dereference vulnerability in Codesys
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.
network
low complexity
codesys CWE-476
7.5
2021-10-26 CVE-2021-34593 Improper Handling of Exceptional Conditions vulnerability in Codesys Plcwinnt and Runtime Toolkit
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.
network
low complexity
codesys CWE-755
7.5
2021-10-26 CVE-2021-34595 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Codesys Plcwinnt and Runtime Toolkit
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.
network
low complexity
codesys CWE-119
8.1
2021-10-26 CVE-2021-34596 Access of Uninitialized Pointer vulnerability in Codesys Plcwinnt and Runtime Toolkit
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.
network
low complexity
codesys CWE-824
6.5
2021-08-25 CVE-2021-21869 Deserialization of Untrusted Data vulnerability in Codesys 3.5.16.0/3.5.17.0
An unsafe deserialization vulnerability exists in the Engine.plugin ProfileInformation ProfileData functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17.
local
low complexity
codesys CWE-502
7.8
2021-08-18 CVE-2021-21867 Deserialization of Untrusted Data vulnerability in Codesys 3.5.16.0/3.5.17.0
An unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17.
local
low complexity
codesys CWE-502
7.8
2021-08-18 CVE-2021-21868 Deserialization of Untrusted Data vulnerability in Codesys 3.5.16.0/3.5.17.0
An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.get_MissingTypes() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17.
local
low complexity
codesys CWE-502
7.8