CVE-2021-22800: Input Validation
A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-22800?
CVE-2021-22800 is a vulnerability that allows for a Denial of Service attack on the Modicon M218 Logic Controller.
What is the severity of CVE-2021-22800?
CVE-2021-22800 has a severity level of 7.5, which is considered high.
How does CVE-2021-22800 affect the Modicon M218 Logic Controller?
CVE-2021-22800 affects the Modicon M218 Logic Controller by allowing a Denial of Service attack when a crafted packet is sent to the controller over network port 1105/TCP.
What is the affected version of the Modicon M218 Logic Controller?
The affected version of the Modicon M218 Logic Controller is V5.1.0.6 and prior.
How can I fix CVE-2021-22800?
To fix CVE-2021-22800, it is recommended to update the Modicon M218 Logic Controller firmware to a version that is not vulnerable.