CVE-2021-22800 — HIGH (7.5)

Q: How severe is CVE-2021-22800?

CVE-2021-22800 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-22800?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modicon M218 Firmware, Schneider-Electric Modicon M218.

Vulnerability Description

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)

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Schneider-Electric	Modicon M218 Firmware	<= 5.1.0.6
Schneider-Electric	Modicon M218	-

Related Weaknesses (CWE)

CWE-20

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-04PatchVendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-04PatchVendor Advisory

FAQ

What is CVE-2021-22800?

CVE-2021-22800 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...

How severe is CVE-2021-22800?

CVE-2021-22800 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-22800?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modicon M218 Firmware, Schneider-Electric Modicon M218.