Race condition

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-2021-34593: Improper Handling of Exceptional Conditions

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...

CVE-2021-34595: Use of Out-of-range Pointer Offset

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-2021-34596: Access of Uninitialized Pointer

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...

PT-2021-20570 · 3S Smart Software Solutions · Codesys V2 Runtime Toolkit +1

Name of the Vulnerable Software and Affected Versions: CODESYS V2 Runtime Toolkit 32 Bit full versions prior to V2.4.7.56 PLCWinNT versions prior to V2.4.7.56 Description: A crafted request with invalid offsets may cause an out-of-bounds read or write access, resulting in a denial-of-service...