Out-of-Bounds Write Vulnerability in CODESYS V2 Web-Server Software
CVE-2021-30193

9.8CRITICAL

Key Information:

Vendor

Codesys

Status
V2 Web Server
Vendor
CVE Published:
25 May 2021

What is CVE-2021-30193?

The CODESYS V2 Web-Server versions earlier than 1.1.9.20 are susceptible to an Out-of-Bounds Write vulnerability. This security flaw can occur when the web-server processes data and allows attackers to write outside the allocated memory space. Exploiting this vulnerability may lead to unauthorized access to critical system components, which can compromise the integrity and confidentiality of the environment. Users of affected versions are strongly advised to upgrade to the latest version to mitigate potential risks.

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:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.