Heap-based Buffer Overflow in CODESYS V2 Runtime System by CODESYS Group
CVE-2021-30186

7.5HIGH

Key Information:

Vendor

Codesys

Status
Plcwinnt
Runtime Toolkit
Vendor
CVE Published:
25 May 2021

What is CVE-2021-30186?

The CODESYS V2 runtime system is affected by a critical heap-based buffer overflow that occurs in versions prior to 2.4.7.55. This vulnerability could allow an attacker to exploit the buffer overflow, potentially leading to unauthorized code execution or application instability. It is crucial for users of the CODESYS V2 runtime system to update to the latest version to mitigate risks associated with this vulnerability.

References

https://customers.codesys.com/index.php
x_refsource_MISC
https://customers.codesys.com/index.php?eID=dumpFile&t=f&...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.